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Trigonometric function (Definition)

Functions for calculating angular values.

The trigonometric functions are provided by the Math object.

The following trigonometric functions are defined by the ECMA standard:

FunctionDescription
acos()Inverse cosine
asin()Inverse sine
atan()Inverse tangent
atan2()Inverse tangent of two values
cos()Cosine of an angle
sin()Sine of an angle
tan()Tangent of an angle

See also:Exponent-log function, Integer-value-remainder, Math object, Math.acos(), Math.asin(), Math.atan(), Math.atan2(), Math.cos(), Math.sin(), Math.tan(), Mathematics, Power function

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JavaScript Programmer's Reference, Cliff Wootton
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