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Online Math Expression Evaluator

A calculator for evaluating mathematical expressions. You can use functions like sqrt, cos, sin, abs, etc.

How to Use

  1. Step 1: Type a mathematical expression in the input field.
  2. Step 2: The result is calculated in real-time.
  3. Step 3: Use functions like sin(), cos(), sqrt(), log(), etc.

Frequently Asked Questions

What functions are available?

Supported functions include trigonometry (sin, cos, tan), logarithms (log, log2, log10), powers (sqrt, pow, exp), and constants (pi, e).

Does it support complex expressions?

Yes. The evaluator supports nested functions, units, matrices, and complex numbers.

What math functions does the calculator support?

Supported: sin, cos, tan, asin, acos, atan, log, log2, log10, ln, exp, sqrt, cbrt, pow, abs, floor, ceil, round, max, min, sum, mean, std, and constants pi and e. Matrix and complex number operations are also supported.

How does an online math calculator safely evaluate user input?

Safe mathematical expression evaluation cannot use eval() directly (code injection risk). Use a dedicated math parser: math.js (JavaScript, runs in a safe sandbox); asteval (Python, AST-based whitelist evaluation); or build your own lexer and expression tree. This tool safely parses expressions client-side, allowing only math functions and operators without executing arbitrary code.