*Function:* *mat_function** (f,mat)*
Returns *f(mat)*, where f is an analytic function and mat a matrix.
I have tried:
load(diag);
A:matrix([4,1,2],[0,2,-4],[0,1,6]);
mat_function(lambda([x],x^k),A);
fpow(x):=block([k],declare(k,integer),x^k);
mat_function(fpow,A);
The question is: why lambda expression doesn't work here?[?]
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