Syntax

   [F, e, n] = logt(A)

Description

   F = logt(A) approximates log(A) by the tau method. 

Required

   x = itau object.

Input

   A = any matrix.

Output

   F = polynomial approximation of log(M) in [a, b] evaluated (with 
       orthovalM) in argument M = matrixM(x) = M(x). (double matrix).

See also

  schursolver and orthovalM.