Difference between revisions of "Tutorial Complex"

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The introduction of complex matrices to EJML is very recent and he best way to handle them is still undecided.  The only way to manipulate complex matrices is using a procedural interface.  The complex analog for each procedural class can be found for the complex case by adding "C" infront of it. Here are a few examples:
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Most real operations in EJML have a complex analog.  For example, CommonOps_DDRM has the complex equivalent of CommonOps_ZDRM.  ZMatrixRMaj is the complex analog for DMatrixRMaj.  Floats are also support, e.g. FDRM -> CDRM.  See tutorial on [[Procedural|procedural interface]] for a table of suffixes.  
  
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{| class="wikitable"
 
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! Real !! Complex
 
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|-
 
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| CommonOps || CCommonOps
 
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| MatrixFeature || CMatrixFeatures
 
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|-
 
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| NormOps || CNormOps
 
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|-
 
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| RandomMatrices || CRandomMatrices
 
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|-
 
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| SpecializedOps || CSpecializedOps
 
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|}
 
  
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The complex analog of DenseMatrix64F is DenseMatrixC64F.  The following functions provide different ways to convert one matrix type into the other.
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The following specialized functions are contained inside the complex CommonOps class.  They different ways to convert one matrix type into the other.
  
 
{| class="wikitable"
 
{| class="wikitable"
 
! Function !! Description
 
! Function !! Description
 
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| CCommonOps.convert() || Converts a real matrix into a complex matrix
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| CommonOps_ZDRM.convert() || Converts a real matrix into a complex matrix
 
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| CCommonOps.stripReal() || Strips the real component and places it into a real matrix.
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| CommonOps_ZDRM.stripReal() || Strips the real component and places it into a real matrix.
 
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| CCommonOps.stripImaginary() || Strips the imaginary component and places it into a real matrix.
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| CommonOps_ZDRM.stripImaginary() || Strips the imaginary component and places it into a real matrix.
 
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| CCommonOps.magnitude() || Computes the magnitude of each element and places it into a real matrix.
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| CommonOps_ZDRM.magnitude() || Computes the magnitude of each element and places it into a real matrix.
 
|}
 
|}
  
 
There is also Complex64F which contains a single complex number. [[Example Complex Math]] does a good job covering how to manipulate those objects.
 
There is also Complex64F which contains a single complex number. [[Example Complex Math]] does a good job covering how to manipulate those objects.

Latest revision as of 21:16, 17 May 2017

Most real operations in EJML have a complex analog. For example, CommonOps_DDRM has the complex equivalent of CommonOps_ZDRM. ZMatrixRMaj is the complex analog for DMatrixRMaj. Floats are also support, e.g. FDRM -> CDRM. See tutorial on procedural interface for a table of suffixes.


The following specialized functions are contained inside the complex CommonOps class. They different ways to convert one matrix type into the other.

Function Description
CommonOps_ZDRM.convert() Converts a real matrix into a complex matrix
CommonOps_ZDRM.stripReal() Strips the real component and places it into a real matrix.
CommonOps_ZDRM.stripImaginary() Strips the imaginary component and places it into a real matrix.
CommonOps_ZDRM.magnitude() Computes the magnitude of each element and places it into a real matrix.

There is also Complex64F which contains a single complex number. Example Complex Math does a good job covering how to manipulate those objects.

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