math-calculator

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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.

2installs

Sourcezhijing123/caicaizi123

Added on2026-04-02

NPX Install

npx skill4agent add zhijing123/caicaizi123 math-calculator

SKILL.md Content

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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:

bash

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?":

Claude Code receives the request

Execute:

python3 scripts/calculate.py "123 * 456"

Script returns:
```
56088
```
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: ..."