Scilab Function
Last update : 18/05/2014

cosm - matrix cosine function

Calling Sequence

t=cosm(x)

Parameters

Description

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

Examples


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

See Also

cos,  expm,