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About

Evaluating complex arithmetic strings requires strict adherence to the Order of Operations (PEMDAS/BODMAS). A single misplaced parenthesis or misinterpreted operator precedence can drastically alter the result. This is critical in coding, engineering formulas, and scientific data entry.

This evaluator parses raw mathematical text strings, breaking them down into a syntax tree. It handles nested parentheses ((...)), powers ^, and standard arithmetic, providing an instant, accurate result alongside a visualization of how the computer interprets your input.

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Formulas

The calculator uses the Shunting-yard algorithm to convert infix notation (standard) to Reverse Polish Notation (RPN) for processing.

Example: 3 + 4 × 2

Correct Logic: 3 + (4 × 2) = 11

Incorrect Logic: (3 + 4) × 2 = 14

Reference Data

OperatorPrecedenceAssociativity
( )1-
^ (Power)2Right-to-Left
× / ÷3Left-to-Right
+ / 4Left-to-Right

Frequently Asked Questions

It is an acronym for the order of operations: Parentheses, Exponents, Multiplication & Division (same rank), Addition & Subtraction (same rank).
No. For clarity and strict syntax parsing, you must use the "*" symbol (e.g., 2*(3+4), not 2(3+4)). This prevents ambiguity in complex engineering strings.