Scientific Calculator
Full scientific calculator with trigonometry, logarithms, factorials and memory keys.
About the Scientific Calculator
Scientific Calculator gives you the full spread of trigonometric (sin/cos/tan), logarithmic (log/ln), exponential, factorial and power functions directly in the browser. Ideal for homework, quick engineering checks and exam prep.
How to use
- Tap digits and operators on the virtual keypad.
- Use DEG / RAD to switch angle mode.
- Use memory (M+, M-, MR) to keep running totals.
Benefits & key features
- Everything a CASIO fx-82 ships with, plus keyboard input.
- Works offline — safe to use without exam-mode cheating concerns.
- No ads, no popups, no upsells.
- Accurate to JavaScript's 64-bit floating-point precision.
Pro tip
Keyboard: digits just work, * multiplies, / divides, Enter equals, and Backspace deletes the last entry.