Scientific Calculator – Advanced Online Math with History and Angle Modes
Type or click to build expressions with trig, logs, powers, roots, factorial, memory, and degrees/radians. See instant results, history, and error checks—no login, all client-side.
No uploads. Everything runs locally in your browser.
Example loaded. Angle mode: Degrees.
Use root(x, n) for nth root, log for base 10, ln for natural log, exp for e^x, Ans for previous answer. Factorial (!) only accepts non-negative integers.
- sin, cos, tan take angles in the selected mode; inverse trig returns in that mode.
- log is base 10, ln is natural log, exp is e^x, 10^x uses base 10 exponentiation.
- root(x, n) computes the n-th root of x. sqrt and cbrt cover common cases.
- Factorial (!) works for whole numbers ≥ 0 and caps overflow at n ≤ 170.
- Use Ans to chain calculations; memory keys store values independent of history.
No history yet. Evaluate an expression to start history.
- Angle mode: Degrees (toggle above).
- Result format: decimals with scientific notation for very large/small values.
- Validation: detects division by zero, invalid domains, factorial limits, and parentheses mismatches.
- Keyboard: press Enter to evaluate; use parentheses to control order; unary minus is supported.
- Conversions: deg→rad = angle × π/180, rad→deg = angle × 180/π.
What is this tool
This Scientific Calculator is a full expression workspace that parses algebra, trigonometry, exponent, root, logarithm, and factorial operations with proper precedence. It supports degrees/radians, inverse trig returning in your chosen mode, constants π and e, memory keys, and Ans recall. You get instant validation, scientific notation output, and reusable history entries so it feels closer to a handheld scientific calculator—without downloads or logins.
Error diagnostics catch division by zero, invalid domains (log/ln/sqrt/inverse trig), factorial misuse, and mismatched parentheses. The keypad is optimized for mobile and desktop, while keyboard input lets you type quickly and hit Enter to evaluate. Fraction-like exactness appears via simplified factorial and power handling, and very large or small numbers fall back to readable scientific notation automatically.
With learning notes, memory controls, and optional presets for trig, logarithms, exponentials, and mixed expressions, the calculator doubles as a teaching aid and a practical engineering helper. Everything runs client-side, so school, college, and professional users can compute securely with no upload risk.
Use cases
- School and college math: practice trig with degree/radian toggles, check inverse trig outputs, and verify algebraic expressions with parentheses.
- Trigonometry practice: evaluate sin/cos/tan or inverse trig quickly, including mixed expressions like sin(45) + log(100) + 3^2.
- Engineering calculations: compute powers, roots, exponentials, and logs with memory recall, scientific notation, and reusable history.
- Quick scientific computations: use Ans and history to chain multi-step problems without retyping.
- Checking manual calculations: validate steps for slope/angle or log/exp problems before submitting assignments or reports.
If you also need geometry helpers, jump to the slope calculator or the unit circle visualizer. For exponent-heavy work, the exponent & power calculator provides dedicated tables and comparisons.
Popular ways to use this tool
- Enter sin(45) + log(100) + 3^2 in Degrees mode to see mixed trig/log/power evaluation with history storage.
- Switch to Radians and test inverse trig like asin(0.5) to watch output adapt to the selected mode.
- Use root(81, 4) or sqrt(81) to compare nth-root handling with standard square roots.
- Tap M+ after evaluating a subtotal, then recall it with MR while using Ans to chain follow-up calculations.
- Load the mixed example to trigger an intentional division-by-zero segment and observe error diagnostics.
For additional math utilities, visit the percentage calculator for quick ratios, the fraction calculator for exact rational forms, or the matrix calculator for linear algebra workflows.
How to use
- Select Degrees or Radians, then type an expression or tap keypad buttons (supports keyboard input and Ans).
- Use scientific keys for sin, cos, tan, log/ln, powers, roots, factorial, and parentheses; memory keys store/recall values.
- Press = or Enter to evaluate with error diagnostics; copy result or expression and reuse history entries.
- Load example presets (trig/log/exp/mixed), toggle scientific/normal view, and clear to start fresh.
Features
- Full scientific expression parser with precedence, parentheses, unary negatives, factorial, powers, roots, and modulo
- Trig functions with degree/radian modes plus inverse trig returning in the selected mode
- Logs and exponentials (log, ln, exp, 10^x), constants π and e, Ans recall, and memory keys (MC/MR/M+/M-)
- Instant validation with error messages for division by zero, domain issues, factorial limits, and mismatched parentheses
- History with reuse/copy, result/expression copy, scientific notation output, presets, and learning notes
FAQ
How do I switch between degrees and radians?
Use the Degrees/Radians toggle. Trig inputs and inverse trig outputs follow the selected mode instantly.
Does it support keyboard input?
Yes. Type directly into the expression field and press Enter to evaluate. The keypad is optional.
How are errors handled?
The calculator surfaces clear messages for division by zero, invalid factorial, domain errors for log/ln/sqrt/inverse trig, and mismatched parentheses.
Can I reuse previous answers?
Yes. Use Ans to insert the last result, or tap a history entry to load it back into the expression.
Is this scientific calculator free and private?
It runs entirely in your browser, is free, requires no login, and never uploads your calculations.