Math evaluator
Evaluates mathematical expressions with functions such as sqrt, sin, cos and abs — handier than a system calculator.
A calculator for evaluating mathematical expressions. You can use functions like sqrt, cos, sin, abs, etc.
Steps and notes
What is Math evaluator?
Evaluate mathematical expressions directly — arithmetic, parentheses, and functions like sqrt, cos, sin and abs. Faster than opening a spreadsheet for a one-off calculation, and it keeps the full expression visible so you can check the formula, not just the result.
- Type the expression
- The result updates live, or after you click evaluate
- For long expressions, verifying the steps separately is worthwhile
Frequently asked questions
- Which functions can I use?
- The common math set: sqrt, abs, trigonometric functions (sin, cos, tan), logarithms and more. Type the expression as you would write it — the standard precedence rules apply.
- Why does 0.1 + 0.2 not equal exactly 0.3?
- Floating-point arithmetic: binary cannot represent 0.1 exactly, so the result is 0.30000000000000004. It is a property of every IEEE 754 calculator, not a bug in this one.
- Are angles in degrees or radians?
- The trig functions follow the JavaScript convention and use radians — convert with deg * pi / 180 first if your data is in degrees.
Category: Math
Calculators workflow
Math evaluator → Percentage Calculator