Try this and I'm happy to explain if necessary:
public class Derivative {
public static void main(final String[] args) {
DerivativeStructure dsA = new DerivativeStructure(1, 1, 0, 1d);
System.out.println("Derivative of constant^x wrt x");
for (int a = -3; a < 3; a++) {
final DerivativeStructure a_ds = new DerivativeStructure(1, 1,
a);
final DerivativeStructure out = a_ds.pow(dsA);
System.out.format("Derivative@%d=%f\n", a,
out.getPartialDerivative(new int[]{1}));
}
}
}
On Fri, Aug 23, 2013 at 7:59 AM, Gilles <gil...@harfang.homelinux.org>wrote:
> On Fri, 23 Aug 2013 07:17:35 -0700, Ajo Fod wrote:
>
>> Seems like the DerivativeCompiler returns NaN.
>>
>> IMHO it should return 0.
>>
>
> What should be 0? And Why?
>
>
>
>> Is this worthy of an issue?
>>
>
> As is, no.
>
> Gilles
>
>
>> Thanks,
>> -Ajo
>>
>
>
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