how to apply a power function to all elements of matrix?

I have a matrix R, and I wish to apply a power function to all elements of that matrix. The coefficients of that function a,b,c are in an array [a b c].

I guess I can't use Polyval as its for polynomials. I wish I could use arrayfunc BUT, my a,b,c values change for my every matrix R (I have about 50 diff R matrices). So even if I did arrayfunc(defined_powerfunc,R) I don't get how I'll send the a,b,c values to it.

Please let me know how to solve this problem, thanks!

[James Tursa]

Please post a short example of inputs and desired output.

[sai shashidhar nagabandi]

hello James so the matrix is something like

A = [1 2 3; 4 5 6; 7 8 9] and a power function looks like y = a*(x^b) + c. I wish to apply this transformation to all elements of A. (Here x is values of A)

I just figured why not do a.*(A.^b) + c simply! Hope that works, I just got lost in trying to find something like polyval. Thanks!