
how can i get the exponential from a matrix  cant find the function. how can i build it


Coordinator
Nov 14, 2014 at 10:17 AM

You are referring to
this function? We do not support it out of the box yet, but we certainly want to have it in the future as it has a few very useful use cases.



Hello cdrnet  yes this is the Function i want to use...
Now i have build it for my owen
Thank you for replay



Hello,
I'm working on the same. Fitting and exponential.
I still cannot found any solution (for free). Did you make any progress?
Regards,
Jaroslav



Hello Jaroslav
I have found an easy way
Algorithmus:
E = expm(A)
Situation: A
∈ R4×4
tol := 0.001
Identity Matrix E, I
∈ R4×4
k = 1
repeat
I := A
∗ I/k
E := E + I
k := k + 1
until E < tol
Return: E
Von: jaroslavmencl [email removed]
Gesendet: Mittwoch, 14. Januar 2015 22:42
An: [email removed]
Betreff: Re: matrix exponential [mathnetnumerics:571946]
From: jaroslavmencl
Hello,
I'm working on the same. Fitting and exponential.
I still cannot found any solution (for free). Did you make any progress?
Regards,
Jaroslav

