What is IMPRODUCT function in Excel? IMPRODUCT function is one of Engineering functions in Microsoft Excel that returns the product of 1 to 255 complex numbers in x + yi or x + yj text format. Syntax of IMPRODUCT function IMPRODUCT(inumber1, [inumber2], …) The IMPRODUCT function syntax has the following arguments: Inumber1, [inumber2], … Inumber1 is required, subsequent inumbers are not.…