Y = cos(X)
Y = cosh(X)
cos(X)
is the circular cosine for each element of X
.
cosh(X)
is the hyperbolic cosine for each element of X
.
M = magic(3)
M =
8 1 6
3 5 7
4 9 2
cos(M*pi/4) =
1.0000 0.7071 -0.0000
-0.7071 -0.7071 0.7071
-1.0000 0.7071 0.0000
cos(pi/2)
is not exactly zero, but rather a value the size of the floating-point accuracy, eps
, because pi
is only a floating-point approximation to the exact value.
acos
,asin
,atan
,exp
,expm
,funm
,sin
,tan
(c) Copyright 1994 by The MathWorks, Inc.