IMSUB Google Sheet Formula

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IMSUB Formula Syntax

=IMSUB("3+4i", "1+2i")

Example Use Case

Subtracting one complex number from another for complex number operations

Understanding the IMSUB Formula

The IMSUB function in Excel subtracts one complex number from another. It's a fundamental complex arithmetic tool—like performing vector subtraction in electrical engineering, electronics, or physics applications that involve complex numbers.

IMSUB("3+4i", "1+2i") returns "2+2i", subtracting the second complex number from the first. It takes two inumber arguments (as text in the form "x+yi" or "x+yj"), performing component-wise subtraction—useful for complex number calculations in technical or scientific applications.

Why Use IMSUB?

IMSUB enables complex arithmetic—think electrical impedance or quantum state calculations. Its ability to handle the subtraction operation in the complex domain makes it essential for technical disciplines where complex numbers appear in calculations requiring vector-like operations.

Example with Sample Data

Complex Numbers	Formula	Result
"3+4i", "1+2i"	=IMSUB("3+4i", "1+2i")	2+2i
"5-3i", "2+1i"	=IMSUB("5-3i", "2+1i")	3-4i
"4", "i"	=IMSUB("4", "i")	4-i

IMSUB performs complex subtraction: (3+4i) - (1+2i) = 2+2i, subtracting both real and imaginary parts. It handles mixed cases like 4 - i = 4-i. It's a complex number arithmetic tool.