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Aide Scilab >> Fonctions Elémentaires > Trigonométrie > cosm

cosm

cosinus matriciel

Séquence d'appel

t=cosm(x)

Paramètres

x,t

matrice réelle ou complexe

Description

cosm(x) est le cosinus matriciel de la matrice x. t=0.5*(expm(%i*x)+expm(-%i*x)).

Exemples

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

Voir aussi

  • cos — cosinus
  • expm — exponentielle de matrice
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Last updated:
Mon Oct 01 17:37:13 CEST 2012