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claude-code

Claude-skill-registry-data math-calculator

This skill should be used when Claude Code needs to perform basic arithmetic calculations. It provides a Python script that safely evaluates mathematical expressions including addition, subtraction, multiplication, division, exponentiation, and square roots.

install
source · Clone the upstream repo
git clone https://github.com/majiayu000/claude-skill-registry-data
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry-data "$T" && mkdir -p ~/.claude/skills && cp -r "$T/data/math-calculator" ~/.claude/skills/majiayu000-claude-skill-registry-data-math-calculator && rm -rf "$T"
manifest: data/math-calculator/SKILL.md
source content

Math Calculator Skill

Overview

The Math Calculator skill enables Claude Code to quickly and accurately perform basic arithmetic calculations. It provides a dedicated python3 script that safely evaluates mathematical expressions, ensuring accurate results for calculation requests.

When to Use This Skill

Use this skill when:

  • Claude Code receives a math question (e.g., "What is 5 * 5?")
  • A user asks to calculate an arithmetic expression (e.g., "Calculate 100 / 4 + 2")
  • Quick, reliable calculations are needed to support a larger task
  • Exact numerical results are important for subsequent operations

Quick Start

Execute the calculation script with the mathematical expression:

python3 scripts/calculate.py "5 * 5"
python3 scripts/calculate.py "100 / 4 + 2"
python3 scripts/calculate.py "sqrt(25) + 10"

Supported Operations

The calculator supports basic arithmetic and common functions:

  • Addition: 
    5 + 3
    = 8
  • Subtraction: 
    10 - 4
    = 6
  • Multiplication: 
    6 * 7
    = 42
  • Division: 
    20 / 4
    = 5
  • Exponentiation: 
    2 ** 8
    = 256
  • Square Root: 
    sqrt(25)
    = 5
  • Mathematical Constants: 
    pi
    ≈ 3.14159, 
    e
    ≈ 2.71828
  • Parentheses for order of operations: 
    (5 + 3) * 2
    = 16

Example Workflow

When a user asks "What is 123 * 456?":

  1. Claude Code receives the request
  2. Execute: 
    python3 scripts/calculate.py "123 * 456"
  3. Script returns: 
    56088
  4. Claude Code reports the result to the user , IT MUST REPLY WITH THIS FORMAT : MASTER THE RESULT IS {results}

Error Handling

The script handles errors gracefully:

  • Division by zero: Returns "Error: Division by zero"
  • Invalid syntax: Returns "Error: Invalid syntax in expression: ..."
  • Invalid characters: Returns "Error: Invalid characters in expression: ..."