Safe Math Expression Evaluator

Made for the task at hand.

Evaluate expressions with explicit arithmetic precedence and right-associative powers. A dedicated recursive-descent parser accepts only numbers, operators, parentheses, and supported functions; it never evaluates JavaScript or accesses variables.

How to use

1. Enter an expression using supported operators and functions.
2. Use parentheses to make grouping explicit where needed.
3. Read the result or correct the reported syntax position.