Scientific Calculator
Full-featured scientific calculator with trigonometry, logarithms, and more.
How It Works
Use the on-screen calculator for arithmetic, trigonometric, logarithmic, and exponential operations. Supports both degree and radian modes for trigonometric functions.
**Scientific Calculator — Complete Mathematical Functions Online**
Our Scientific Calculator replicates the functionality of a physical scientific calculator (like the Casio FX-991 or Texas Instruments TI-30) directly in your browser. No download, no sign-up — just powerful calculations available immediately.
**Functions Available**
**Basic Arithmetic**
- Addition, subtraction, multiplication, division
- Percentage calculations
- Positive/negative toggle (+/-)
**Powers and Roots**
- Square (x²), Cube (x³), Power (x^y)
- Square root (√), Cube root (∛), nth root
- Reciprocal (1/x)
**Trigonometry (Degrees and Radians)**
- Sine (sin), Cosine (cos), Tangent (tan)
- Inverse trig: arcsin, arccos, arctan
- Hyperbolic: sinh, cosh, tanh
**Logarithms and Exponentials**
- Natural log (ln), Base-10 log (log)
- e^x, 10^x
- Euler's number (e ≈ 2.71828)
**Constants**
- π (Pi ≈ 3.14159265)
- e (Euler's number ≈ 2.71828)
**Memory Functions**
- M+, M-, MR (Memory Recall), MC (Memory Clear)
- Ans button for chaining calculations
**When Do You Need a Scientific Calculator?**
*High school and university maths* — Calculus, statistics, physics, and engineering all require scientific calculator functionality.
*Physics problems* — Trigonometry for force vectors, exponentials for radioactive decay, logarithms for decibel levels.
*Chemistry* — pH calculations (log base 10), equilibrium constants, Arrhenius equation.
*Engineering* — Signal processing (sine/cosine), impedance calculations, unit conversions.
**Degrees vs. Radians**
Always check your mode before doing trigonometry. sin(90) in degree mode = 1 (correct). sin(90) in radian mode ≈ 0.894 (90 radians is not 90 degrees). The D/R toggle controls this — a common source of errors.