Math Calculator

This tool provides a lightweight online math calculator designed for quick arithmetic, exponentiation, percentages, and simple expressions. It supports both single-operator inputs and full infix expressions. Conceptually, the calculator accepts two operands and an operator or a full expression; it tokenizes the input, applies standard operator precedence, and evaluates to a numeric result. Precision can be configured to a fixed number of decimal places, and outputs include both a raw numeric result and a formatted string. Errors produce structured feedback rather than UI prompts.\n\nWho benefits: students mastering algebra, analysts validating numbers in reports, developers prototyping an expression engine, and educators building exercises. Unique value lies in a minimal, dependency-free core that delivers deterministic results and easy integration into other tools.\n\nCore features include multi-field input, expression parsing, error reporting, configurable precision, and outputs suitable for downstream processing or copy/export. Typical use cases include quick classroom calculations, data checks in reports, and lightweight back-end validation of numeric formulas.