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cosd

element-wise cosine function, argument in degree

Syntax

y = cosd(x)

Arguments

x

a real vector/matrix.

Description

For a vector or a matrix x of angles given in degree, cosd(x) is the cosine of its elements. The results are in [-1 1]. For input elements which are equal to n*90 with n integer and odd, the result is exactly zero.

Sample

Examples

cosd([0 30 45 60 90 360])
1 ./ cosd([-90 90])
--> cosd([0 30 45 60 90 360])
 ans  =
   1.   0.8660254   0.7071068   0.5   0.   1.

--> 1 ./ cosd([-90 90])
 ans  =
   Inf   Inf

See also

  • acosd — element wise cosine inverse, result in degree.
  • cos — cosine function
  • acos — element wise cosine inverse (radians)
  • cosh — hyperbolic cosine
  • acosh — hyperbolic cosine inverse
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Last updated:
Mon Nov 07 14:58:51 CET 2022