SINHaccepts either aCOMPLEXorREALargument and returns a value of the same type. The argument must be specified in radians, regardless of the current trigonometric mode. The real and imaginary parts ofSINH(Z) are calculated (using real arithmetic) as:
REAL(SINH(Z)) = SINH(REAL(Z))*COS(IMAG(Z))
IMAG(SINH(Z)) = COSH(REAL(Z))*SIN(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.