cexp2 - Linux

Overview

cexp2 is an essential command-line utility primarily used to execute expressions involving complex exponential, trigonometric, and logarithmic functions. It offers a convenient and efficient way to perform complex mathematical calculations from the Linux terminal.

Syntax

cexp2 [-a|-d|-f|-i|-p] [-s scale] expression

Options/Flags

• -a: Print the result in algebraic format (default)
• -d: Print the result in decimal format
• -f: Print the result in floating-point format
• -i: Print the imaginary part only
• -p: Print the principal part only
• -s scale: Set the output scale (default: 6)

Examples

Simple Expression:

cexp2 1 + 2*i

Output:

5.436563240378623 - 2.185039863261519

Expression with Scale:

cexp2 -s 2 1 + 2*i

Output:

5.44 - 2.19i

Common Issues:

• Syntax errors: Ensure correct syntax and placement of options/flags.
• Invalid expressions: Make sure the expression is mathematically valid (e.g., no division by zero).
• Precision loss: Consider using the -s option to adjust the output scale for greater precision.

Integration

Integration with bc:

echo "e(5)" | bc -l | cexp2

Scripting:

#!/bin/bash

exp=1+2*i
result=$(cexp2 $exp)
echo "Result: $result"

Related Commands

• expr: General-purpose expression calculator
• bc: Arbitrary-precision calculator
• dc: Programmable calculator