IMSIN function
Returns the sine of a complex number. The sine of a complex number can be expressed by:
sin(a+bi)=sin(a)cosh(b)+cos(a)sinh(b)i
IMSIN(Complex_number)
Complex_number is a complex number whose sine needs to be calculated.
=IMSIN("4-3i")
returns -7.61923172032141+6.548120040911i.
=IMSIN(2)
returns 0.909297426825682 as a string.
The imaginary part is equal to zero, so it is not displayed in the result.