Справка LibreOffice 7.4
Returns the cosecant of a complex number. The cosecant of a complex number can be expressed by:
МНИМ.CSC(КомплексноеЧисло)
Complex_number is a complex number whose cosecant needs to be calculated.
=МНИМ.CSC("4-3i")
возвращает -0,0754898329158637-0,0648774713706355i.
=IMCSC(2)
returns 1.09975017029462 as a string. The imaginary part is equal to zero, so it is not displayed in the result.