

FracSin
You can use theFracSin
function to obtain a fast approximation of the sine of aFixed
number.
FUNCTION FracSin (x: Fixed): Fract;
x
 The
Fixed
number expressed in radians, whose sine is to be calculated.DESCRIPTION
TheFracSin
function returns the sine, expressed in radians, of theFixed
numberx
.The approximation of Pi/4 used to compute the sine is the hexadecimal value 0.C910, making the approximation of Pi equal to 3.1416015625, while Pi itself equals 3.14159265.... Despite the approximation of Pi, the sine value obtained is usually correct to several decimal places.
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