## expm

Exponential for matrix for itau object.

Exponential for matrix for itau object.

F = expm(x, coef)

F = expm(x) returns the F matrix suth that F is the Taylor series expansion for function of matrices. Here is sused Malab's function "funm" for our x propertie, it means, matrixM(x) = M.

x = independent tau variable (itau object).

coef = coefficients of a polynomial (double vector). If coef is informed, then we want exp(sum[coef_iP_i(M)]).

F = matrix sized by [x.n x.n], translating exp(M) in terms of its Taylor series expansion (double matrix in F.mat).

sinm, sinhm, cosm, coshm, logm and sqrtm.