Re: [ojAlgo-user] power or round functionality

[Argyrouska B. <esp...@gm...>]

Sorry,

Thanks for your prompt reply.
Maybe I didn't make myself clear. I was referring to exponential similar to
what native Java Math.pow() does.
What I am looking for is:

BasicMatrix tA, tB;
tA.pow(tB); or tA.pow(2.0);

which will eventually lead to tA^x, where x=element from tB (applied for
each element) or a constant value.
Secondly a round function similar to what native Java Math.round() offers.
Meaning:

BasicMatrix tA;
tA.round(RoundindMode);

which will result in rounding each element of tA to RoundingMode, where
RoundingMode=FLOOR, CEILING etc
Are these possible using UnaryFunctions?

Thanks

On 27 April 2015 at 20:00, Anders Peterson <an...@op...> wrote:

> Sorry, I just noticed you were using BasicMatrix. It works a little
> different there (a somewhat limited set of functionality) partly because
> BasicMatrix instances are immutable. It does have a modify-method:
>
>     BasicMatrix modify(UnaryFunction<? extends Number>);
>
>
>
>
> > On 27 apr 2015, at 18:51, Anders Peterson <an...@op...> wrote:
> >
> > Do you want to modify matrix elements?
> >
> > Everything that implements Access2D.Modifiable has these methods:
> >
> > modifyColumn(long, long, UnaryFunction<N>)
> > modifyDiagonal(long, long, UnaryFunction<N>)
> > modifyOne(long, long, UnaryFunction<N>)
> > modifyOne(long, UnaryFunction<N>)
> > modifyRange(long, long, UnaryFunction<N>)
> > modifyRow(long, long, UnaryFunction<N>)
> >
> > If you’re using primitive double elements you’ll find a predefined set
> of functions in org.ojalgo.function.PrimitiveFunction
> >
> > The PhysicalStore.Factory also provides access to that set of functions.
> >
> > If you don’t find what you need you just create a custom UnaryFunction
> implementation.
> >
> > /Anders
> >
> >
> >> On 27 apr 2015, at 18:29, Argyrouska Bob <esp...@gm...> wrote:
> >>
> >> Hello,
> >>
> >> I am a new member and still practicing with library but what surprises
> me is that I haven't found support for power functions or round to a
> BasicMatrix data type. Is this true or it's named somewhat different?
> >>
> >> Thanks and regards,
> >> silver
> >>
> >>
> >>
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