Cos by tau approximation.
[F, e, n] = cosht(A)
F = cost(A) approximates cos(A) by tau method.
x = itau object.
A = any matrix.
F = polynomial approximation of cos(M) in [a, b] evaluated (with
orthovalM) in argument M = matrixM(x) = M(x). (double matrix).
schursolver and orthovalM.
© 2017-18 by University of Porto
and Tau Toolbox developers.