# Manuals/calci/IMSUB

IMSUB()

• Parameters is of the form .
• IMSUB(), returns the difference between two complex numbers.

## Description

• This function gives the difference of the two complex numbers.
• In , Parameters is of the form .
• & are the real numbers. imaginary unit ..
• Consider two complex numbers z1 and z2 are of the form and .
• The difference of two complex number is: where and are real numbers.
• We can use COMPLEX function to convert real and imaginary number in to a complex number.

## ZOS

• The syntax is to calculate the difference of the complex numbers in ZOS is .
• Parameters is of the form
• For e.g.,IMSUB("4+5i","9-3i")
Imsub

## Examples

1. IMSUB("6+4i","5+3i")=1+1i
2. IMSUB("3+4i","6+7i")=-3-3i
3. IMSUB("8","9+10i")=-1-10i
4. IMSUB("5+7i","3")=2+7i

IMSUB