Complex_number is a complex number whose hyperbolic cosecant needs to be calculated.
A complex number is a string expression resulting in the form "a+bi" or "a+bj", where a and b are numbers.
[text/scalc/01/ful_func.xhp#func_im_real_numb not found].
[text/scalc/01/ful_func.xhp#func_im_return_text not found].
If the result is a complex number with one of its parts (a or b) equal to zero, that part is not displayed.
returns 0.275720564771783 as a string. The imaginary part is equal to zero, so it is not displayed in the result.