What is IMSECH function in Excel? IMSECH function is one of Engineering functions in Microsoft Excel that returns the hyperbolic secant of a complex number in x+yi or x+yj text format. Syntax of IMSECH function IMSECH(inumber) The IMSECH function syntax has the following arguments. Inumber: A complex number for which you want the hyperbolic secant. IMSECH formula […]