java.lang.Object

org.ejml.dense.fixed.CommonOps_DDF6

@Generated("org.ejml.dense.fixed.GenerateCommonOps_DDF") public class CommonOps_DDF6 extends Object

Common matrix operations for fixed sized matrices which are 6 x 6 or 6 element vectors.

DO NOT MODIFY. Automatically generated code created by GenerateCommonOps_DDF

Constructor Summary

Constructors

Constructor

Description

CommonOps_DDF6()
Method Summary

Modifier and Type

Method

Description

static void

add(DMatrix6 a, DMatrix6 b, DMatrix6 c)

Performs the following operation:

c = a + b
c_i = a_i + b_i

static void

add(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = a + b
c_ij = a_ij + b_ij

static void

addEquals(DMatrix6 a, DMatrix6 b)

Performs the following operation:

a = a + b
a_i = a_i + b_i

static void

addEquals(DMatrix6x6 a, DMatrix6x6 b)

Performs the following operation:

a = a + b
a_ij = a_ij + b_ij

static void

changeSign(DMatrix6 a)

Changes the sign of every element in the vector.

a_i = -a_i

static void

changeSign(DMatrix6x6 a)

Changes the sign of every element in the matrix.

a_ij = -a_ij

static boolean

cholL(DMatrix6x6 A)

Performs a lower Cholesky decomposition of matrix 'A' and stores result in A.

static boolean

cholU(DMatrix6x6 A)

Performs an upper Cholesky decomposition of matrix 'A' and stores result in A.

static void

diag(DMatrix6x6 input, DMatrix6 out)

Extracts all diagonal elements from 'input' and places them inside the 'out' vector.

static void

divide(DMatrix6 a, double alpha)

Performs an in-place element by element scalar division.

static void

divide(DMatrix6 a, double alpha, DMatrix6 b)

Performs an element by element scalar division.

static void

divide(DMatrix6x6 a, double alpha)

Performs an in-place element by element scalar division.

static void

divide(DMatrix6x6 a, double alpha, DMatrix6x6 b)

Performs an element by element scalar division.

static double

dot(DMatrix6 a, DMatrix6 b)

Performs the vector dot product:

c = a * b

c ≥ ∑_k=1:n { b_k * a_k }

static void

elementDiv(DMatrix6 a, DMatrix6 b)

Performs an element by element division operation:

a_i = a_i / b_i

static void

elementDiv(DMatrix6 a, DMatrix6 b, DMatrix6 c)

Performs an element by element division operation:

c_i = a_i / b_i

static void

elementDiv(DMatrix6x6 a, DMatrix6x6 b)

Performs an element by element division operation:

a_ij = a_ij / b_ij

static void

elementDiv(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs an element by element division operation:

c_ij = a_ij / b_ij

static double

elementMax(DMatrix6 a)

Returns the value of the element in the vector that has the largest value.

Max{ a_i } for all i

static double

elementMax(DMatrix6x6 a)

Returns the value of the element in the matrix that has the largest value.

Max{ a_ij } for all i and j

static double

elementMaxAbs(DMatrix6 a)

Returns the absolute value of the element in the vector that has the largest absolute value.

Max{ |a_i| } for all i

static double

elementMaxAbs(DMatrix6x6 a)

Returns the absolute value of the element in the matrix that has the largest absolute value.

Max{ |a_ij| } for all i and j

static double

elementMin(DMatrix6 a)

Returns the value of the element in the vector that has the minimum value.

Min{ a_i } for all

static double

elementMin(DMatrix6x6 a)

Returns the value of the element in the matrix that has the minimum value.

Min{ a_ij } for all i and j

static double

elementMinAbs(DMatrix6 a)

Returns the absolute value of the element in the vector that has the smallest absolute value.

Min{ |a_i| } for all i

static double

elementMinAbs(DMatrix6x6 a)

Returns the absolute value of the element in the matrix that has the smallest absolute value.

Min{ |a_ij| } for all i and j

static void

elementMult(DMatrix6 a, DMatrix6 b)

Performs an element by element multiplication operation:

a_i = a_i * b_i

static void

elementMult(DMatrix6 a, DMatrix6 b, DMatrix6 c)

Performs an element by element multiplication operation:

c_i = a_i * b_j

static void

elementMult(DMatrix6x6 a, DMatrix6x6 b)

Performs an element by element multiplication operation:

a_ij = a_ij * b_ij

static void

elementMult(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs an element by element multiplication operation:

c_ij = a_ij * b_ij

static DMatrix6

extractColumn(DMatrix6x6 a, int column, DMatrix6 out)

Extracts the column from the matrix a.

static DMatrix6

extractRow(DMatrix6x6 a, int row, DMatrix6 out)

Extracts the row from the matrix a.

static void

fill(DMatrix6 a, double v)

Sets every element in the vector to the specified value.

a_i = value

static void

fill(DMatrix6x6 a, double v)

Sets every element in the matrix to the specified value.

a_ij = value

static void

mult(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = α * a * b

c_ij = α ∑_k=1:n { a_ik * b_kj}

static void

mult(DMatrix6 a, DMatrix6x6 b, DMatrix6 c)

Performs vector to matrix multiplication:

c = a * b

c_j = ∑_k=1:n { b_k * a_kj }

static void

mult(DMatrix6x6 a, DMatrix6 b, DMatrix6 c)

Performs matrix to vector multiplication:

c = a * b

c_i = ∑_k=1:n { a_ik * b_k}

static void

mult(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = a * b

c_ij = ∑_k=1:n { a_ik * b_kj}

static void

multAdd(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c += α * a * b

c_ij += α ∑_k=1:n { a_ik * b_kj}

static void

multAdd(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c += a * b

c_ij += ∑_k=1:n { a_ik * b_kj}

static void

multAddOuter(double alpha, DMatrix6x6 A, double beta, DMatrix6 u, DMatrix6 v, DMatrix6x6 C)

C = αA + βu*v^T

static void

multAddTransA(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c += α * a^T * b

c_ij += α * ∑_k=1:n { a_ki * b_kj}

static void

multAddTransA(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c += a^T * b

c_ij += ∑_k=1:n { a_ki * b_kj}

static void

multAddTransAB(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c += α*a^T * b^T
c_ij += α*∑_k=1:n { a_ki * b_jk}

static void

multAddTransAB(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c += a^T * b^T
c_ij += ∑_k=1:n { a_ki * b_jk}

static void

multAddTransB(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c += α * a * b^T
c_ij += α*∑_k=1:n { a_ik * b_jk}

static void

multAddTransB(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c += a * b^T
c_ij += ∑_k=1:n { a_ik * b_jk}

static void

multTransA(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = α * a^T * b

c_ij = α * ∑_k=1:n { a_ki * b_kj}

static void

multTransA(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = a^T * b

c_ij = ∑_k=1:n { a_ki * b_kj}

static void

multTransAB(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = α*a^T * b^T
c_ij = α*∑_k=1:n { a_ki * b_jk}

static void

multTransAB(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = a^T * b^T
c_ij = ∑_k=1:n { a_ki * b_jk}

static void

multTransB(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = α * a * b^T
c_ij = α*∑_k=1:n { a_ik * b_jk}

static void

multTransB(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = a * b^T
c_ij = ∑_k=1:n { a_ik * b_jk}

static void

scale(double alpha, DMatrix6 a)

Performs an in-place element by element scalar multiplication.

a_ij = α*a_ij

static void

scale(double alpha, DMatrix6 a, DMatrix6 b)

Performs an element by element scalar multiplication.

b_i = α*a_i

static void

scale(double alpha, DMatrix6x6 a)

Performs an in-place element by element scalar multiplication.

a_ij = α*a_ij

static void

scale(double alpha, DMatrix6x6 a, DMatrix6x6 b)

Performs an element by element scalar multiplication.

b_ij = α*a_ij

static void

setIdentity(DMatrix6x6 a)

Sets all the diagonal elements equal to one and everything else equal to zero.

static void

subtract(DMatrix6 a, DMatrix6 b, DMatrix6 c)

Performs the following operation:

c = a - b
c_i = a_i - b_i

static void

subtract(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)

Performs the following operation:

c = a - b
c_ij = a_ij - b_ij

static void

subtractEquals(DMatrix6 a, DMatrix6 b)

Performs the following operation:

a = a - b
a_i = a_i - b_i

static void

subtractEquals(DMatrix6x6 a, DMatrix6x6 b)

Performs the following operation:

a = a - b
a_ij = a_ij - b_ij

static double

trace(DMatrix6x6 a)

This computes the trace of the matrix:

trace = ∑_i=1:n { a_ii }

static void

transpose(DMatrix6x6 m)

Performs an in-place transpose.

static DMatrix6x6

transpose(DMatrix6x6 input, DMatrix6x6 output)

Transposes matrix 'a' and stores the results in 'b':

b_ij = a_ji
where 'b' is the transpose of 'a'.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- CommonOps_DDF6
  
  public CommonOps_DDF6()
Method Details
- add
  
  public static void add(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = a + b
  c_ij = a_ij + b_ij
  
  Matrix C can be the same instance as Matrix A and/or B.
  
  Parameters:
  
  a - A Matrix. Not modified.
  
  b - A Matrix. Not modified.
  
  c - A Matrix where the results are stored. Modified.
- add
  
  public static void add(DMatrix6 a, DMatrix6 b, DMatrix6 c)
  
  Performs the following operation:
  
  c = a + b
  c_i = a_i + b_i
  
  Vector C can be the same instance as Vector A and/or B.
  
  Parameters:
  
  a - A Vector. Not modified.
  
  b - A Vector. Not modified.
  
  c - A Vector where the results are stored. Modified.
- addEquals
  
  public static void addEquals(DMatrix6x6 a, DMatrix6x6 b)
  
  Performs the following operation:
  
  a = a + b
  a_ij = a_ij + b_ij
  
  Parameters:
  
  a - A Matrix. Modified.
  
  b - A Matrix. Not modified.
- addEquals
  
  public static void addEquals(DMatrix6 a, DMatrix6 b)
  
  Performs the following operation:
  
  a = a + b
  a_i = a_i + b_i
  
  Parameters:
  
  a - A Vector. Modified.
  
  b - A Vector. Not modified.
- subtract
  
  public static void subtract(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = a - b
  c_ij = a_ij - b_ij
  
  Matrix C can be the same instance as Matrix A and/or B.
  
  Parameters:
  
  a - A Matrix. Not modified.
  
  b - A Matrix. Not modified.
  
  c - A Matrix where the results are stored. Modified.
- subtract
  
  public static void subtract(DMatrix6 a, DMatrix6 b, DMatrix6 c)
  
  Performs the following operation:
  
  c = a - b
  c_i = a_i - b_i
  
  Vector C can be the same instance as Vector A and/or B.
  
  Parameters:
  
  a - A Vector. Not modified.
  
  b - A Vector. Not modified.
  
  c - A Vector where the results are stored. Modified.
- subtractEquals
  
  public static void subtractEquals(DMatrix6x6 a, DMatrix6x6 b)
  
  Performs the following operation:
  
  a = a - b
  a_ij = a_ij - b_ij
  
  Parameters:
  
  a - A Matrix. Modified.
  
  b - A Matrix. Not modified.
- subtractEquals
  
  public static void subtractEquals(DMatrix6 a, DMatrix6 b)
  
  Performs the following operation:
  
  a = a - b
  a_i = a_i - b_i
  
  Parameters:
  
  a - A Vector. Modified.
  
  b - A Vector. Not modified.
- transpose
  
  public static void transpose(DMatrix6x6 m)
  
  Performs an in-place transpose. This algorithm is only efficient for square matrices.
  
  Parameters:
  
  m - The matrix that is to be transposed. Modified.
- transpose
  
  public static DMatrix6x6 transpose(DMatrix6x6 input, DMatrix6x6 output)
  
  Transposes matrix 'a' and stores the results in 'b':
  
  b_ij = a_ji
  where 'b' is the transpose of 'a'.
  
  Parameters:
  
  input - The original matrix. Not modified.
  
  output - Where the transpose is stored. If null a new matrix is created. Modified.
  
  Returns:
  
  The transposed matrix.
- mult
  
  public static void mult(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = a * b
  
  c_ij = ∑_k=1:n { a_ik * b_kj}
  
  Parameters:
  
  a - The left matrix in the multiplication operation. Not modified.
  
  b - The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- mult
  
  public static void mult(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = α * a * b
  
  c_ij = α ∑_k=1:n { a_ik * b_kj}
  
  Parameters:
  
  alpha - Scaling factor.
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multTransA
  
  public static void multTransA(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = a^T * b
  
  c_ij = ∑_k=1:n { a_ki * b_kj}
  
  Parameters:
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multTransA
  
  public static void multTransA(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = α * a^T * b
  
  c_ij = α * ∑_k=1:n { a_ki * b_kj}
  
  Parameters:
  
  alpha - Scaling factor.
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multTransAB
  
  public static void multTransAB(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = a^T * b^T
  c_ij = ∑_k=1:n { a_ki * b_jk}
  
  Parameters:
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multTransAB
  
  public static void multTransAB(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = α*a^T * b^T
  c_ij = α*∑_k=1:n { a_ki * b_jk}
  
  Parameters:
  
  alpha - Scaling factor.
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multTransB
  
  public static void multTransB(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = a * b^T
  c_ij = ∑_k=1:n { a_ik * b_jk}
  
  Parameters:
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multTransB
  
  public static void multTransB(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c = α * a * b^T
  c_ij = α*∑_k=1:n { a_ik * b_jk}
  
  Parameters:
  
  alpha - Scaling factor.
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multAdd
  
  public static void multAdd(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c += a * b
  
  c_ij += ∑_k=1:n { a_ik * b_kj}
  
  Parameters:
  
  a - The left matrix in the multiplication operation. Not modified.
  
  b - The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multAdd
  
  public static void multAdd(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c += α * a * b
  
  c_ij += α ∑_k=1:n { a_ik * b_kj}
  
  Parameters:
  
  alpha - Scaling factor.
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multAddTransA
  
  public static void multAddTransA(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c += a^T * b
  
  c_ij += ∑_k=1:n { a_ki * b_kj}
  
  Parameters:
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multAddTransA
  
  public static void multAddTransA(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c += α * a^T * b
  
  c_ij += α * ∑_k=1:n { a_ki * b_kj}
  
  Parameters:
  
  alpha - Scaling factor.
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multAddTransAB
  
  public static void multAddTransAB(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c += a^T * b^T
  c_ij += ∑_k=1:n { a_ki * b_jk}
  
  Parameters:
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multAddTransAB
  
  public static void multAddTransAB(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c += α*a^T * b^T
  c_ij += α*∑_k=1:n { a_ki * b_jk}
  
  Parameters:
  
  alpha - Scaling factor.
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multAddTransB
  
  public static void multAddTransB(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c += a * b^T
  c_ij += ∑_k=1:n { a_ik * b_jk}
  
  Parameters:
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multAddTransB
  
  public static void multAddTransB(double alpha, DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs the following operation:
  
  c += α * a * b^T
  c_ij += α*∑_k=1:n { a_ik * b_jk}
  
  Parameters:
  
  alpha - Scaling factor.
  
  a - (Input) The left matrix in the multiplication operation. Not modified.
  
  b - (Input) The right matrix in the multiplication operation. Not modified.
  
  c - (Output) Where the results of the operation are stored. Modified.
- multAddOuter
  
  public static void multAddOuter(double alpha, DMatrix6x6 A, double beta, DMatrix6 u, DMatrix6 v, DMatrix6x6 C)
  
  C = αA + βu*v^T
  
  Parameters:
  
  alpha - scale factor applied to A
  
  A - matrix
  
  beta - scale factor applies to outer product
  
  u - vector
  
  v - vector
  
  C - Storage for solution. Can be same instance as A.
- mult
  
  public static void mult(DMatrix6x6 a, DMatrix6 b, DMatrix6 c)
  
  Performs matrix to vector multiplication:
  
  c = a * b
  
  c_i = ∑_k=1:n { a_ik * b_k}
  
  Parameters:
  
  a - The left matrix in the multiplication operation. Not modified.
  
  b - The right vector in the multiplication operation. Not modified.
  
  c - Where the results of the operation are stored. Modified.
- mult
  
  public static void mult(DMatrix6 a, DMatrix6x6 b, DMatrix6 c)
  
  Performs vector to matrix multiplication:
  
  c = a * b
  
  c_j = ∑_k=1:n { b_k * a_kj }
  
  Parameters:
  
  a - The left vector in the multiplication operation. Not modified.
  
  b - The right matrix in the multiplication operation. Not modified.
  
  c - Where the results of the operation are stored. Modified.
- dot
  
  public static double dot(DMatrix6 a, DMatrix6 b)
  
  Performs the vector dot product:
  
  c = a * b
  
  c ≥ ∑_k=1:n { b_k * a_k }
  
  Parameters:
  
  a - The left vector in the multiplication operation. Not modified.
  
  b - The right matrix in the multiplication operation. Not modified.
  
  Returns:
  
  The dot product
- setIdentity
  
  public static void setIdentity(DMatrix6x6 a)
  
  Sets all the diagonal elements equal to one and everything else equal to zero. If this is a square matrix then it will be an identity matrix.
  
  Parameters:
  
  a - A matrix.
- cholL
  
  public static boolean cholL(DMatrix6x6 A)
  
  Performs a lower Cholesky decomposition of matrix 'A' and stores result in A.
  
  Parameters:
  
  A - (Input) SPD Matrix. (Output) lower cholesky.
  
  Returns:
  
  true if it was successful or false if it failed. Not always reliable.
- cholU
  
  public static boolean cholU(DMatrix6x6 A)
  
  Performs an upper Cholesky decomposition of matrix 'A' and stores result in A.
  
  Parameters:
  
  A - (Input) SPD Matrix. (Output) upper cholesky.
  
  Returns:
  
  true if it was successful or false if it failed. Not always reliable.
- trace
  
  public static double trace(DMatrix6x6 a)
  
  This computes the trace of the matrix:
  
  trace = ∑_i=1:n { a_ii }
  
  The trace is only defined for square matrices.
  
  Parameters:
  
  a - A square matrix. Not modified.
- diag
  
  public static void diag(DMatrix6x6 input, DMatrix6 out)
  
  Extracts all diagonal elements from 'input' and places them inside the 'out' vector. Elements are in sequential order.
  
  Parameters:
  
  input - Matrix. Not modified.
  
  out - Vector containing diagonal elements. Modified.
- elementMax
  
  public static double elementMax(DMatrix6x6 a)
  
  Returns the value of the element in the matrix that has the largest value.
  
  Max{ a_ij } for all i and j
  
  Parameters:
  
  a - A matrix. Not modified.
  
  Returns:
  
  The max element value of the matrix.
- elementMax
  
  public static double elementMax(DMatrix6 a)
  
  Returns the value of the element in the vector that has the largest value.
  
  Max{ a_i } for all i
  
  Parameters:
  
  a - A vector. Not modified.
  
  Returns:
  
  The max element value of the matrix.
- elementMaxAbs
  
  public static double elementMaxAbs(DMatrix6x6 a)
  
  Returns the absolute value of the element in the matrix that has the largest absolute value.
  
  Max{ |a_ij| } for all i and j
  
  Parameters:
  
  a - A matrix. Not modified.
  
  Returns:
  
  The max abs element value of the matrix.
- elementMaxAbs
  
  public static double elementMaxAbs(DMatrix6 a)
  
  Returns the absolute value of the element in the vector that has the largest absolute value.
  
  Max{ |a_i| } for all i
  
  Parameters:
  
  a - A matrix. Not modified.
  
  Returns:
  
  The max abs element value of the vector.
- elementMin
  
  public static double elementMin(DMatrix6x6 a)
  
  Returns the value of the element in the matrix that has the minimum value.
  
  Min{ a_ij } for all i and j
  
  Parameters:
  
  a - A matrix. Not modified.
  
  Returns:
  
  The value of element in the matrix with the minimum value.
- elementMin
  
  public static double elementMin(DMatrix6 a)
  
  Returns the value of the element in the vector that has the minimum value.
  
  Min{ a_i } for all
  
  Parameters:
  
  a - A matrix. Not modified.
  
  Returns:
  
  The value of element in the vector with the minimum value.
- elementMinAbs
  
  public static double elementMinAbs(DMatrix6x6 a)
  
  Returns the absolute value of the element in the matrix that has the smallest absolute value.
  
  Min{ |a_ij| } for all i and j
  
  Parameters:
  
  a - A matrix. Not modified.
  
  Returns:
  
  The max element value of the matrix.
- elementMinAbs
  
  public static double elementMinAbs(DMatrix6 a)
  
  Returns the absolute value of the element in the vector that has the smallest absolute value.
  
  Min{ |a_i| } for all i
  
  Parameters:
  
  a - A matrix. Not modified.
  
  Returns:
  
  The max element value of the vector.
- elementMult
  
  public static void elementMult(DMatrix6x6 a, DMatrix6x6 b)
  
  Performs an element by element multiplication operation:
  
  a_ij = a_ij * b_ij
  
  Parameters:
  
  a - The left matrix in the multiplication operation. Modified.
  
  b - The right matrix in the multiplication operation. Not modified.
- elementMult
  
  public static void elementMult(DMatrix6 a, DMatrix6 b)
  
  Performs an element by element multiplication operation:
  
  a_i = a_i * b_i
  
  Parameters:
  
  a - The left vector in the multiplication operation. Modified.
  
  b - The right vector in the multiplication operation. Not modified.
- elementMult
  
  public static void elementMult(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs an element by element multiplication operation:
  
  c_ij = a_ij * b_ij
  
  Parameters:
  
  a - The left matrix in the multiplication operation. Not modified.
  
  b - The right matrix in the multiplication operation. Not modified.
  
  c - Where the results of the operation are stored. Modified.
- elementMult
  
  public static void elementMult(DMatrix6 a, DMatrix6 b, DMatrix6 c)
  
  Performs an element by element multiplication operation:
  
  c_i = a_i * b_j
  
  Parameters:
  
  a - The left vector in the multiplication operation. Not modified.
  
  b - The right vector in the multiplication operation. Not modified.
  
  c - Where the results of the operation are stored. Modified.
- elementDiv
  
  public static void elementDiv(DMatrix6x6 a, DMatrix6x6 b)
  
  Performs an element by element division operation:
  
  a_ij = a_ij / b_ij
  
  Parameters:
  
  a - The left matrix in the division operation. Modified.
  
  b - The right matrix in the division operation. Not modified.
- elementDiv
  
  public static void elementDiv(DMatrix6 a, DMatrix6 b)
  
  Performs an element by element division operation:
  
  a_i = a_i / b_i
  
  Parameters:
  
  a - The left vector in the division operation. Modified.
  
  b - The right vector in the division operation. Not modified.
- elementDiv
  
  public static void elementDiv(DMatrix6x6 a, DMatrix6x6 b, DMatrix6x6 c)
  
  Performs an element by element division operation:
  
  c_ij = a_ij / b_ij
  
  Parameters:
  
  a - The left matrix in the division operation. Not modified.
  
  b - The right matrix in the division operation. Not modified.
  
  c - Where the results of the operation are stored. Modified.
- elementDiv
  
  public static void elementDiv(DMatrix6 a, DMatrix6 b, DMatrix6 c)
  
  Performs an element by element division operation:
  
  c_i = a_i / b_i
  
  Parameters:
  
  a - The left vector in the division operation. Not modified.
  
  b - The right vector in the division operation. Not modified.
  
  c - Where the results of the operation are stored. Modified.
- scale
  
  public static void scale(double alpha, DMatrix6x6 a)
  
  Performs an in-place element by element scalar multiplication.
  
  a_ij = α*a_ij
  
  Parameters:
  
  a - The matrix that is to be scaled. Modified.
  
  alpha - the amount each element is multiplied by.
- scale
  
  public static void scale(double alpha, DMatrix6 a)
  
  Performs an in-place element by element scalar multiplication.
  
  a_ij = α*a_ij
  
  Parameters:
  
  a - The vector that is to be scaled. Modified.
  
  alpha - the amount each element is multiplied by.
- scale
  
  public static void scale(double alpha, DMatrix6x6 a, DMatrix6x6 b)
  
  Performs an element by element scalar multiplication.
  
  b_ij = α*a_ij
  
  Parameters:
  
  alpha - the amount each element is multiplied by.
  
  a - The matrix that is to be scaled. Not modified.
  
  b - Where the scaled matrix is stored. Modified.
- scale
  
  public static void scale(double alpha, DMatrix6 a, DMatrix6 b)
  
  Performs an element by element scalar multiplication.
  
  b_i = α*a_i
  
  Parameters:
  
  alpha - the amount each element is multiplied by.
  
  a - The vector that is to be scaled. Not modified.
  
  b - Where the scaled matrix is stored. Modified.
- divide
  
  public static void divide(DMatrix6x6 a, double alpha)
  
  Performs an in-place element by element scalar division. Scalar denominator.
  
  a_ij = a_ij/α
  
  Parameters:
  
  a - The matrix whose elements are to be divided. Modified.
  
  alpha - the amount each element is divided by.
- divide
  
  public static void divide(DMatrix6 a, double alpha)
  
  Performs an in-place element by element scalar division. Scalar denominator.
  
  a_i = a_i/α
  
  Parameters:
  
  a - The vector whose elements are to be divided. Modified.
  
  alpha - the amount each element is divided by.
- divide
  
  public static void divide(DMatrix6x6 a, double alpha, DMatrix6x6 b)
  
  Performs an element by element scalar division. Scalar denominator.
  
  b_ij = a_ij /α
  
  Parameters:
  
  alpha - the amount each element is divided by.
  
  a - The matrix whose elements are to be divided. Not modified.
  
  b - Where the results are stored. Modified.
- divide
  
  public static void divide(DMatrix6 a, double alpha, DMatrix6 b)
  
  Performs an element by element scalar division. Scalar denominator.
  
  b_i = a_i /α
  
  Parameters:
  
  alpha - the amount each element is divided by.
  
  a - The vector whose elements are to be divided. Not modified.
  
  b - Where the results are stored. Modified.
- changeSign
  
  public static void changeSign(DMatrix6x6 a)
  
  Changes the sign of every element in the matrix.
  
  a_ij = -a_ij
  
  Parameters:
  
  a - A matrix. Modified.
- changeSign
  
  public static void changeSign(DMatrix6 a)
  
  Changes the sign of every element in the vector.
  
  a_i = -a_i
  
  Parameters:
  
  a - A vector. Modified.
- fill
  
  public static void fill(DMatrix6x6 a, double v)
  
  Sets every element in the matrix to the specified value.
  
  a_ij = value
  
  Parameters:
  
  a - A matrix whose elements are about to be set. Modified.
  
  v - The value each element will have.
- fill
  
  public static void fill(DMatrix6 a, double v)
  
  Sets every element in the vector to the specified value.
  
  a_i = value
  
  Parameters:
  
  a - A vector whose elements are about to be set. Modified.
  
  v - The value each element will have.
- extractRow
  
  public static DMatrix6 extractRow(DMatrix6x6 a, int row, DMatrix6 out)
  
  Extracts the row from the matrix a.
  
  Parameters:
  
  a - Input matrix
  
  row - Which row is to be extracted
  
  out - output. Storage for the extracted row. If null then a new vector will be returned.
  
  Returns:
  
  The extracted row.
- extractColumn
  
  public static DMatrix6 extractColumn(DMatrix6x6 a, int column, DMatrix6 out)
  
  Extracts the column from the matrix a.
  
  Parameters:
  
  a - Input matrix
  
  column - Which column is to be extracted
  
  out - output. Storage for the extracted column. If null then a new vector will be returned.
  
  Returns:
  
  The extracted column.

Class CommonOps_DDF6

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Details

CommonOps_DDF6

Method Details

add

add

addEquals

addEquals

subtract

subtract

subtractEquals

subtractEquals

transpose

transpose

mult

mult

multTransA

multTransA

multTransAB

multTransAB

multTransB

multTransB

multAdd

multAdd

multAddTransA

multAddTransA

multAddTransAB

multAddTransAB

multAddTransB

multAddTransB

multAddOuter

mult

mult

dot

setIdentity

cholL

cholU

trace

diag

elementMax

elementMax

elementMaxAbs

elementMaxAbs

elementMin

elementMin

elementMinAbs

elementMinAbs

elementMult

elementMult

elementMult

elementMult

elementDiv

elementDiv

elementDiv

elementDiv

scale

scale

scale

scale

divide

divide

divide

divide

changeSign

changeSign

fill

fill

extractRow

extractColumn