Scientific Calculator
Full scientific calculator with trig functions, logarithms, exponents, and calculation history.
A scientific calculator follows order of operations (PEMDAS / BODMAS): brackets and exponents first, then ×/÷, then +/−. Use it for sin, cos, tan, log, ln, √, and powers. Set the angle mode to match your task — degrees are standard for everyday geometry, while radians are used in calculus and most scientific work worldwide.
How to Use
Use +, −, ×, ÷ for basic operations. Use % for percentages — e.g. 150×20% gives 30.
sin(30), cos(45), tan(60) — switch between Degrees and Radians using the DEG/RAD toggle.
log(100) = 2 (base 10), ln(e) = 1 (natural log). Critical for finance, science, and engineering.
√(25) = 5. For cube roots: use x^(1/3). For nth root: use x^(1/n).
x² squares the current value. x^y lets you enter any base^exponent, e.g. 2^10 = 1024.
π = 3.14159265… (pi). e = 2.71828182… (Euler's number). Both can be used in expressions.
Reference: Scientific Functions
| Function | What It Does | Example | Common Use |
|---|---|---|---|
| sin(x) | Sine of angle x | sin(30) = 0.5 | Geometry, physics, waves |
| cos(x) | Cosine of angle x | cos(60) = 0.5 | Navigation, engineering |
| tan(x) | Tangent of angle x | tan(45) = 1 | Slopes, angles |
| log(x) | Base-10 logarithm | log(1000) = 3 | pH, decibels, Richter scale |
| ln(x) | Natural logarithm (base e) | ln(e) = 1 | Finance, growth models |
| √(x) | Square root | √(144) = 12 | Geometry, statistics |
| x² | Squaring a number | 5² = 25 | Area, Pythagorean theorem |
| x^y | Exponentiation | 2^10 = 1024 | Compound interest, binary |
| n! | Factorial | 5! = 120 | Combinations, permutations |