Scientific Calculator
Free online scientific calculator — trigonometry, logarithm, statistics, and more.
Result
12.5
Result 12.5
📐 About This Calculator
A scientific calculator with trigonometry, logarithms, powers, roots, factorials and combinatorics, plus base conversion and statistics. Expressions use mathjs syntax with a DEG/RAD toggle and ANS recall.
TRIG (DEG/RAD): sin, cos, tan, asin, acos, atan
LOG: log (base 10), ln (base e)
POWERS: x², xʸ (^), √, exp
COMBINATORICS: n!, nCr = n!/(r!(n−r)!), nPr = n!/(n−r)!
BASE: BIN ↔ OCT ↔ DEC ↔ HEX
STATS: mean, median, mode, variance, SD
Variable Definitions:
- • DEG/RAD = Angle unit for trig functions
- • ANS = Result of the previous calculation
✅ Best used for:
- • Engineering and science
- • Statistics and combinatorics
- • Base conversion
⚠️ Limitations:
- • No calculus or symbolic algebra
- • Factorial capped at 170 (numeric overflow beyond)
📖 How the Scientific Calculator Works
DEG vs RAD
Trig functions take angles in degrees or radians. sin(90°) = 1 in DEG; sin(π/2) = 1 in RAD. Toggle to match your problem.
ANS and history
The last result is stored in ANS and can be reused; your recent calculations are listed and replayable.
Factorial and combinatorics
5! = 120. nCr counts unordered selections; nPr counts ordered ones. E.g. 10C3 = 120 committees from 10 people.