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This function returns the difference between two complex numbers in the x+yi or x+yj text format.
IMSUB(complexnum1, complexnum2)
The complexnum1 is a complex number from which to subtract the other complex number complexnum2.
An error is returned if the arguments are not in the form "x+yi" or "x+yj". For more information, refer to Complex Numbers.
Accepts number and string data. Returns string data.
IMSUB("2+5j","5+3i")