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cosm(G)                        Scilab Function                        cosm(G)
NAME
  cosm -  matrix cosine function

CALLING SEQUENCE
  t=cosm(x)

PARAMETERS

  x         : real or complex square  matrix

DESCRIPTION
  cosm(x) is  the matrix cosine of the x matrix. t=0.5*(expm(%i*x)+expm(-
  %i*x)).

EXAMPLE
  A=[1,2;3,4]
  cosm(A)-0.5*(expm(%i*A)+expm(-%i*A))

SEE ALSO
  cos, expm