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## Re: exp(A) where A is a matix

**From**: |
Daniel Heiserer |

**Subject**: |
Re: exp(A) where A is a matix |

**Date**: |
Wed, 04 Aug 1999 09:51:45 +0200 |

address@hidden wrote:
>* *
>* On Tue, Aug 03, 1999 at 02:29:30PM -0500, heberf wrote:*
>* > How do I implement exp(A), where A is a matix, in an .oct file? The only *
>* > thing*
>* > I could find is A.expm but this return the matrix exponential. I want the *
>* > thing*
>* > that returns a matrix B where Bij = exp(Aij).*
>* *
>* Hi,*
>* *
>* octave:1> e*
>* e = 2.7183*
>* octave:2> a=[1 2; 3 4]*
>* a =*
>* *
>* 1 2*
>* 3 4*
>* *
>* octave:3> e.^a*
>* ans =*
>* *
>* 2.7183 7.3891*
>* 20.0855 54.5982*
>* *
>* :)*
I think he asked for a .oct file, not a m-file style.
daniel
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