ATN2( ) Function Example
CLEAR ? PI( ) && Displays 3.14 ? ATN2(0,-1) && Displays 3.14 STORE COS(PI( )) TO gnXCoord STORE SIN(PI( )) TO gnYCoord ? ATN2(gnYCoord,gnXCoord) && Displays 3.14 ? ATN2(gnYCoord,gnXCoord)/PI( ) && Displays 1.00