Matrix Function (MFN) is the object provided by SLEPc for computing the action of a matrix function on a vector. Given a matrix A and a vector b, the call MFNSolve(mfn,b,x) computes x=f(A)b, where f is a function such as the exponential.
MFNSolve(mfn,b,x)
output// test1.c test2.c test3.c test3f.F90 test4.c test5.c