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

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

I wrote those utilities for you - they’re already checked in.

If you wait a few days there will be a new snapshot release at SourceForge, and not too far away (I think) v39 will be released.


/Anders


> On 6 nov. 2015, at 12:37, applyhhj <app...@16...> wrote:
> 
> 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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