Re: [ojAlgo-user] how to manipulate complex matrix

[Anders P. <an...@op...>]

Welcome to ojAlgo,

I can’t think of a direct way to do that. You need to write a little utility like this:

    public static PrimitiveDenseStore getComplexModulus(final Access2D<ComplexNumber> arg) {

        final long tmpRows = arg.countRows();
        final long tmpColumns = arg.countColumns();
        final long tmpCount = tmpRows * tmpColumns;

        final PrimitiveDenseStore retVal = PrimitiveDenseStore.FACTORY.makeZero(tmpRows, tmpColumns);

        for (long i = 0; i < tmpCount; i++) {
            retVal.set(i, arg.get(i).getModulus());
        }

        return retVal;
    }


I’m thinking I should add methods like these to MatrixUtils.


/Anders


> On 6 nov. 2015, at 10:56, applyhhj <app...@16...> wrote:
> 
> Hello, ojalgo community!
>  
> I am new to ojalgo. Could any one tell me how to do the following operation?
>  
> 1. How to get the modulus of a complex matrix? I mean calculate modulus of each element in a complex matrix and store it in a matrix of double type, not complex type.
>  
> 2. Similarly how to get the angle of a matrix?
>  
> Thank you very much!
>  
> Regards!
> hjh
>  
>  
> 2015-11-06
> applyhhj
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