Math Engine

SCIENTIFIC CALCULATOR

Advanced scientific calculator with trig, logs, exponentials, hyperbolic functions, memory, equation solver, constants library, interactive graph plotter, and calculation history.

DEG

Frequently Asked Questions

How do I use the scientific calculator?

Click buttons or use your keyboard. Type digits with number keys, operators with + - * /, and press Enter for equals. Use trig functions (sin, cos, tan) in DEG or RAD mode. Memory buttons (MC, MR, M+, M−, MS) store and recall values.

What is the difference between DEG and RAD mode?

DEG (degrees) mode interprets trig function inputs in degrees (360° circle). RAD (radians) uses radians (2π circle). Toggle with the DEG/RAD button. Default is DEG.

How do I use inverse trig functions?

Use sin⁻¹, cos⁻¹, tan⁻¹ buttons directly. They calculate arcsin, arccos, arctan. In DEG mode results are in degrees; in RAD mode in radians.

What scientific constants are available?

c (speed of light: 299,792,458 m/s), h (Planck: 6.626×10⁻³⁴ J·s), G (gravitational: 6.674×10⁻¹¹ N·m²/kg²), g (gravity: 9.80665 m/s²), atm (standard atmosphere: 101,325 Pa), R (gas constant: 8.314 J/mol·K), k (Boltzmann: 1.381×10⁻²³ J/K), Nₐ (Avogadro: 6.022×10²³ mol⁻¹), mₑ (electron mass), mₚ (proton mass). Click any to insert into the display.

How does calculation history work?

Every time you press =, the calculation is saved to a history list. Click 'History (N)' to expand the panel showing past calculations. Click any history entry to recall its result into the display. Up to 50 entries stored.

How do I solve quadratic equations?

Switch to the Solver tab and select Quadratic mode. Enter coefficients a, b, c for ax² + bx + c = 0. The solver shows the discriminant, step-by-step solution, and the two roots (real or complex).

How do I solve linear equations?

Switch to the Solver tab and select Linear mode. Enter coefficients a, b for ax + b = 0. The solver shows step-by-step solution for x = −b/a. Handles special cases (infinite/no solutions).

How does the graph plotter work?

Switch to the Graph tab. Enter a function like sin(x), x^2, or 2*x+3 and click Plot. Multiple functions can be added with different colors. Drag to pan, scroll to zoom, hover to trace coordinates. Double-click to auto-fit the view.

What scientific functions are available?

Trig: sin, cos, tan, sin⁻¹, cos⁻¹, tan⁻¹. Hyperbolic: sinh, cosh, tanh. Logs: log (base 10), ln (natural). Powers: x², x³, xʸ, √, ∛, ʸ√x, 10ˣ, eˣ. Constants: c, h, G, g, atm, R, k, Nₐ, mₑ, mₚ, π, e. Other: x!, 1/x, ±, %.

Does the calculator show calculation history?

Yes, a collapsible History panel stores up to 50 past calculations. Click any entry to recall the result. Each entry shows the expression and result.

Is this calculator free to use?

Yes, completely free. No sign-up or download needed. All calculations run in your browser with full keyboard support.

How to Use

Calculate

Enter numbers and operators, press = for results. History stores past calculations for recall.

Use Scientific Functions

Click trig, log, power, or constant buttons. Toggle DEG/RAD for trig mode. Functions apply to current display value.

Insert Constants

The constants bar below the display has 10 scientific constants (c, h, G, g, atm, R, k, Nₐ, mₑ, mₚ). Click to insert.

Recall History

Click 'History (N)' to expand. Click any past calculation to load its result back into the display.

Solve Equations

Switch to Solver tab. Choose Quadratic (ax²+bx+c=0) or Linear (ax+b=0). See step-by-step solutions.

Graph Functions

Switch to Graph tab. Enter f(x) expressions like sin(x) or x^2, click Plot. Drag to pan, scroll to zoom, hover to trace. Add multiple functions in different colors.

How to Calculate

Calculator: Enter numbers, choose operators, press = for results. Functions apply to the current display value. History panel stores past calculations.

Constants: 10 scientific constants available as clickable buttons. Inserted directly into the display.

Equation Solver (Quadratic): Enter a, b, c for ax² + bx + c = 0. The solver computes discriminant Δ = b² − 4ac, then finds roots: x = (−b ± √Δ) / 2a. Shows real or complex roots with step-by-step breakdown.

Equation Solver (Linear): Enter a, b for ax + b = 0. Solution: x = −b/a. Handles edge cases (a=0).

Graph Plotter: Plot y = f(x) functions on an interactive canvas. Supports multiple functions with color-coded lines. Drag to pan, scroll to zoom, hover to trace coordinates. Functions parsed: trig, hyperbolic, log, ln, sqrt, cbrt, powers, abs, exp. Supports e and π constants.

About the Scientific Calculator

This comprehensive scientific calculator handles everything from basic arithmetic to advanced equation solving and function graphing. Includes trigonometry (sin, cos, tan, sin⁻¹, cos⁻¹, tan⁻¹), hyperbolic functions (sinh, cosh, tanh), logarithms (log, ln), powers (x², x³, xʸ, √, ∛, ʸ√x, 10ˣ, eˣ), constants (π, e, c, h, G, g, atm, R, k, Nₐ, mₑ, mₚ), factorials, reciprocals, and memory operations.

History: Stores up to 50 past calculations in a collapsible panel with click-to-recall.

Equation Solver: Solves quadratic (ax²+bx+c=0) and linear (ax+b=0) equations with full step-by-step breakdown including discriminant, real/complex roots, and edge case handling.

Graph Plotter: Plot y = f(x) functions on an interactive canvas. Supports multiple functions with color-coded lines. Drag to pan, scroll to zoom, hover to trace coordinates. Double-click to auto-fit view. Parses trig, hyperbolic, log, power, and algebraic expressions.

Features DEG/RAD mode toggle, parentheses grouping, percent calculations, and full keyboard support. All calculations run in your browser. Free to use, no sign-up required.

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