The range of the sine function is -1 to 1 inclusive. The numeric expression is treated as an angle in the current trigonometric mode:RADians orDEGrees. The default trigonometric mode is radians.
COMPLEX Arguments
SINaccepts either aCOMPLEXorREALargument and returns a value of the same type. ForCOMPLEXarguments the angle must be specified in radians, regardless of the current trigonometric mode. The real and imaginary parts ofSIN(Z) are calculated (using real arithmetic) as:
REAL(SIN(Z)) = SIN(REAL(Z))*COSH(IMAG(Z))
IMAG(SIN(Z)) = COS(REAL(Z))*SINH(IMAG(Z))
Notice that intermediate values generated during the calculation of the function can cause over or underflow errors for very large or small values of Z.