====== SIN ====== (Defined in //[[trigono.bas]]//) The ''SIN()'' function returns the sine of the argument. ===== Function Header ===== DECLARE FUNCTION SIN AS FLOAT (x AS FLOAT) SHARED STATIC You must include the //TRIGONO.BAS// library in your program to be able to access this function. ===== Examples ===== INCLUDE "trigono.bas" PRINT SIN(0) : REM outputs a number very close to zero, see the below note PRINT SIN(0.785398) : REM outputs .707704 Trigonometric functions in XC=BASIC were designed to be fast rather than accurate. The result is accurate to 3 to 4 decimal digits (the error range is 0 to 0.0006). Please see [[http://www.ganssle.com/approx.htm|this article]] for details. ===== See also ===== * [[TAN]] * [[ATN]] * [[COS]]