calculate

Evaluate mathematical expressions and solve equations using SymPy.

10|Updated Jul 22, 2025
One-click install
npx skills add https://github.com/bdambrosio/Cognitive_workbench --skill calculate
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: calculate
Source: https://github.com/bdambrosio/Cognitive_workbench/tree/main/src/tools/calculate
Command: npx skills add https://github.com/bdambrosio/Cognitive_workbench --skill calculate

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides a reliable way to perform numerical calculations and solve mathematical equations, overcoming the inaccuracies of LLMs with arithmetic.

Core Features & Use Cases

  • Numerical Evaluation: Calculates the value of mathematical expressions with specified precision.
  • Equation Solving: Solves equations for unknown variables.
  • Variable Substitution: Allows for the use of variables within expressions.
  • Use Case: Calculate the trajectory of a projectile given initial velocity and angle, or solve a quadratic equation to find roots.

Quick Start

Use the calculate skill to evaluate the expression '2 * pi * r' with r=5 and precision=4.

Frequently Asked Questions about calculate

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I numerically evaluate mathematical expressions with variables?

Numerically evaluating mathematical expressions with variables requires substituting values into the expression and calculating the result. This approach supports standard arithmetic, constants, trigonometric functions, logarithms, and variable substitution to provide precise numerical computation.

Can I solve equations for unknown variables using SymPy?

Solving equations for unknown variables using SymPy allows you to find roots for single or multiple variables. This process handles standard algebraic equations, quadratic formulas, and complex mathematical expressions, overcoming the arithmetic inaccuracies typical of standard language models.

What mathematical functions and constants are supported for expression evaluation?

Expression evaluation supports standard arithmetic operators, constants like pi and E, trigonometric functions, logarithms, and exponentiation. These components allow you to calculate complex mathematical formulas and perform numerical computations with high reliability.

Can I solve equations with multiple variables at the same time?

Solving equations with multiple variables simultaneously is supported by the equation solving functionality. This capability allows you to find values for several unknowns within a system of equations, handling both single-variable and multi-variable algebraic problems effectively.

Why use SymPy for numerical computation instead of relying on an LLM?

Using SymPy for numerical computation overcomes the known inaccuracies of LLMs with arithmetic. It provides a reliable way to perform precise mathematical calculations, evaluate complex expressions, and solve equations without the risk of computational errors inherent in language model outputs.