cos

1.00

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Description

Description:

Cosine of a number, argument in degrees.

Groups:

Geometry

Syntax

Syntax:

cos x

Parameters:

x: Number

Return Value:

Number

Examples

Example 1:

cos 60;//returns 0.5

Additional Information

See also:

acossinasintanatanatan2

Notes

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Notes

Posted on August 8, 2006 - 23:54

hardrock

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