Graph Software for Scientists and Engineers

COS(x)

Returns the cosine of the given angle. The angle may be in radians or degrees, controlled by the Angles options. With "radians" selected, cos(pi) returns -1.0

y=cos(x)

See also:

ACOS
SIN
Trigonometric and General Math Functions

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Windows 7, 2008,
Vista, XP, NT,
ME, 2003, 2000,
Windows 98, 95
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