Scientific Calculator
Precision engineering for complex mathematical research and development.
keyboardFull keyboard support enabled
FAQ
The Functions Beyond + − × ÷
What the extra buttons are for
The scientific tier maps to real problem families:
| Function group | Solves |
|---|---|
| Trig (sin, cos, tan) | Angles, heights, waves, vectors |
| Logs (log, ln) | pH, decibels, compound growth, algorithm analysis |
| Powers and roots | Areas, volumes, interest, Pythagoras |
| Factorials / nPr / nCr | Counting and probability |
| Memory and ANS | Multi-step calculations without retyping |
The two errors that ruin right answers
Degree vs radian mode: sin(30) is 0.5 in degrees and −0.988 in radians — geometry homework wants degrees, calculus wants radians, and the wrong mode produces confident nonsense. Order of operations: −3² is −9 (square binds first), and 1/2π differs from 1/(2π) — parenthesize anything you're not certain about. Both errors survive into engineering careers; checking mode and bracketing generously is cheap insurance.
The specialist siblings
Several function groups have richer dedicated tools: data summaries in the statistics calculator, counting in combinations, very large/small numbers in scientific notation, and exact fraction work in the fraction calculator.