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

[applyhhj<app...@16...>]

Thank you very much for your kind response. I will consider this approach. By the way, if there is any method that can retrieve the real and imaginary part of a complex matrix to seperate primitive matrices, that will be great. Thanks again.

Best regards!
hjh

2015-11-06



applyhhj



发件人：Anders Peterson <an...@op...>
发送时间：2015-11-06 19:29
主题：Re: [ojAlgo-user] how to manipulate complex matrix
收件人："ojalgo-user"<oja...@li...>
抄送：

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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> ojAlgo-user mailing list 
> ojA...@li... 
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