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sin   function

theSine = sin(expr)

Returns the sine of expr, where expr is given in radians. The returned value will be in the range -1 to +1. sin always returns a double-precision result.

To find the sine of an angle degAngle which is given in degrees, use the following:

theSine = sin(degAngle * pi / 180)

where pi equals 3.14159265359

See also
asin; cos; tan