cos

Cosine (radians).

Syntax

Y = cos(X)

Description

Returns the cosine of X, in radians.

Examples

cos(0)                     % 1
cos(pi)                    % -1

See also

• cosd — Cosine (degrees).
• acos — Inverse cosine (radians).
• cosh — Hyperbolic cosine.
• sin — Sine (radians).
• tan — Tangent (radians).