Hi,

I get the following with build 4559

[MATH lang=eng]trace(mat(1,3,2,4,2,2))=1@#[/MATH]

I need the trace function to fake the also broken norme() function using

[MATH lang=eng]M:mat(1,2,3,4,2,2)@#[/MATH]

[MATH]norm_e(M):sqrt(trace(transpose(M)*M))[/MATH]

Best regards, Martin Kraska

Hmm, what results do you expect?

Hello,

Wrote

I get the following with build 4559

[MATH lang=eng]trace(mat(1,3,2,4,2,2))=1@#[/MATH]

BTW., trace() is reserved function for debugging purpose - trace evaluations through Output window - see trace()

Regards,
Radovan

Hi,

ok, that is just my fault, I expected trace to be the trace of a matrix, i.e. the sum of the diagonal elements. In fact, I have to use tr(), than everything works as expected:

[MATH lang=eng]M=mat(1,2,3,4,2,2)@#[/MATH]

[MATH lang=eng]sqrt(tr(transpose(M)*M))=sqrt(30)@#[/MATH]

Thanks for the hints!

Best regards, Martin Kraska

Wrote

Hello,

Wrote

I get the following with build 4559

[MATH lang=eng]trace(mat(1,3,2,4,2,2))=1@#[/MATH]

BTW., trace() is reserved function for debugging purpose - trace evaluations through Output window - see trace()

Regards,
Radovan