calculator

Calculator

Evaluate math expressions and perform unit conversions from the command line.

Purpose

Provide a safe, sandboxed calculator for arithmetic expressions and common unit conversions without relying on eval() or external services.

Agent Instructions

1. Read this SKILL.md to understand capabilities.
2. Run scripts/calc.py with the user's expression or conversion.
3. Return the computed result to the user.

Examples

Usage

# Arithmetic expressions
python scripts/calc.py "2 + 3 * 4"
python scripts/calc.py "(100 - 25) / 3"
python scripts/calc.py "2 ** 10"
 
# Percentage calculations

Output

A single line with the result, e.g.:

For conversions:

Limitations

• No symbolic algebra (no variables, no equations).
• Only supports basic arithmetic operators: +, -, *, /, **, %, parentheses.
• Unit conversions are limited to: celsius/fahrenheit, miles/km, kg/lbs, meters/feet.

Troubleshooting