cos

1.001.001.001.001.501.000.50

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Description

Description:

Cosine of a number, argument in degrees.

Groups:

Math - Geometry

Syntax

Syntax:

cos x

Parameters:

x: Number

Return Value:

Number

Examples

Example 1:

cos 60; // returns 0.5

Additional Information

See also:

acos sin asin tan atan atan2

Notes

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Only post proven facts here! Add Note

Hardrock - c

Posted on Aug 08, 2006 - 23:54 (UTC)

Be aware that there might be rounding errors in the results of this command.

cos 90

for example doesn't return the expected '0', but '-4.37114e-008'. So, if you want to compare results of Cosinus, don't use the compare operator

(cos 90) == 0

but rather use less than.

(cos 90) < 0.00001