Algebra Calculator
Evaluate expressions with x and y — powers, roots, trig
Expression
Supports + − * / ^ ( ) and sin cos tan sqrt abs ln log exp pow, pi, e.
=
ErrorAlgebra Calculator — Complete Guide & Instructions
MakeCard Algebra Calculator evaluates algebraic expressions the way a student writes them — with x and y variables, powers, brackets and common functions. Type an expression like 2*x + 3*y − x*4, supply values for x and y, and press Evaluate to get the exact numeric result. It understands + − * / ^ and parentheses plus sin, cos, tan, sqrt, abs, ln, log, exp, pow and the constants pi and e, all evaluated safely in your browser.
How to Use Algebra Calculator
- 1 Type your expression into the Expression box — e.g. 2*x + 3*y - x*4.
- 2 Enter numeric values in the “x =” and “y =” fields.
- 3 Press the “Evaluate” button.
- 4 Read the result shown as your expression equals a value.
- 5 Adjust the expression or the variable values and evaluate again — results update instantly.
Key Features & Capabilities
- Two free variables x and y you can substitute on every run.
- Full arithmetic with +, −, *, /, exponent operator ^, and nested parentheses.
- Built-in functions: sin, cos, tan, sqrt, abs, ln, log (base 10), exp and pow.
- Constants pi and e available inside expressions.
- Safe evaluator — only digits, variables, operators and known functions are accepted, no arbitrary code runs.
- Clear error messages for invalid characters or malformed expressions.
Supported Formats & Specifications
| Parameter | Specification |
|---|---|
| Input | Algebraic expression string + numeric x, y values |
| Operators | + − * / ^ ( ) and comma-separated function arguments |
| Functions | sin cos tan sqrt abs ln log exp pow |
| Constants | pi, e |
| Precision | Result rounded to 8 decimal places |
Practical Everyday Use Cases
- Checking homework by substituting values into algebraic expressions.
- Quickly evaluating formulas that use x and y placeholders in physics or economics problems.
- Testing expressions before committing them to code or a spreadsheet.
- Verifying manual simplification of terms like 2*x + 3*y − x*4.
- Computing trig, root and log values inside a larger arithmetic expression.
Pro Tips for Best Results
- Use ^ for powers — x^2 means x squared; it converts to a real exponent internally.
- Write multiplication explicitly: 2*x works, but 2x is not parsed.
- ln is natural log and log is base-10 — pick the right one for textbook problems.
- Leave x or y at 0 if your expression does not use both variables.
Common Problems & Solutions
Only digits, x, y, operators, parentheses and the listed function names are allowed — remove symbols like =, %, or letters outside function names.
Remember ^ means exponent, not XOR — write x^2 for x², and use sqrt() for roots instead of fractional powers if you hit edge cases.
Privacy & Security
100% Client-Side Execution
Expressions are evaluated by a safe local parser in your browser — nothing you type is transmitted or stored.
Frequently Asked Questions
Everything you need to know about using Algebra Calculator
Type the expression, fill the x = and y = fields, and press Evaluate — the tool substitutes your values and returns the numeric answer.
It evaluates expressions, not equations — use the Equation Solver tool for problems like 2x + 3 = 11 where you need the value of x itself.
sin, cos, tan, sqrt, abs, ln, log, exp and pow, plus the constants pi and e — covering most school and college algebra needs.
Yes — parentheses first, then exponents, multiplication and division, then addition and subtraction, exactly as mathematics requires.
No — evaluation happens locally in the browser with a restricted parser, so your input never leaves the page.
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