cimag - Linux

Overview

cimag extracts the imaginary part of a complex number. This command is typically used in mathematical calculations and numerical analysis applications to work with complex numbers, which are numbers that have both real and imaginary parts.

Syntax

cimag [OPTION]... COMPLEX_NUMBER

Options/Flags

None

Examples

Extract the imaginary part of a complex number:

$ cimag (3.14+2.71i)
2.71

Use with a variable:

$ ComplexNum="3.14+2.71i"
$ echo "$ComplexNum" | cimag
2.71

Common Issues

• Syntax error: Verify that the complex number is provided in the correct format: (real+imaginaryi).
• Invalid complex number: Ensure that the provided complex number contains a non-zero imaginary part.

Integration

cimag can be integrated with other commands to perform advanced operations:

$ echo "(3.14+2.71i)+(1.62-3.55i)" | bc -l | cimag
0.84

Related Commands

• creal: Extracts the real part of a complex number.
• complex: Converts real and imaginary parts into a complex number.
• bc: Arbitrarily precision calculator.