## 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.