Expression Calculator
Evaluate algebraic expressions instantly
Expression Calculator
Table of Contents
How to Use
- Write the expression exactly as you want to evaluate it.
- Optionally provide numeric values for x and y.
- Press Evaluate to normalize the expression and view the numeric result.
Supported Operations
The calculator reads standard algebraic syntax including addition, subtraction, multiplication, division, and exponentiation using the ^ symbol. Implicit multiplication such as 3x is normalized to 3*x before evaluation.
Constants pi and e are automatically converted to Math.PI and Math.E, ensuring high precision even when combining trigonometric expressions.
Tips for Reliable Results
- Keep parentheses balanced so the expression evaluates safely.
- Convert implicit division such as 1/2x into (1/2)*x to avoid ambiguity.
- Use decimals with a period separator; commas are converted automatically.
Frequently Asked Questions
- What functions are supported?
- The calculator focuses on basic arithmetic operations plus exponentiation. Trigonometric and logarithmic functions are not parsed, but you can combine pi and e with powers and coefficients.
- How precise are the results?
- Results are evaluated using JavaScript's double precision floating point numbers and rounded to ten decimal places for readability.