Scientific Calculator
Full scientific calculator with trig, logs, and more.
Frequently Asked Questions
What functions does this scientific calculator support?
This calculator supports: basic arithmetic (+ − × ÷), trigonometric functions (sin, cos, tan, arcsin, arccos, arctan), logarithms (log base 10, natural log ln), square root, powers (x^y), factorials (n!), constants π and e, modulo, and absolute value.
Are trig functions calculated in degrees or radians?
You can switch between degrees and radians using the DEG/RAD toggle. Most everyday problems (angles of elevation, navigation, geometry) use degrees. Radians are the standard in higher mathematics, physics, and calculus. sin(90°) = sin(π/2 rad) = 1.
What is the difference between log and ln?
log (or log₁₀) is the common logarithm — the power to which 10 must be raised to equal the number. log(1000) = 3 because 10³ = 1000. ln is the natural logarithm — the power to which e (≈2.71828) must be raised. ln(e) = 1. ln is used in calculus, probability, and exponential growth problems.
How do I calculate factorial (n!)?
A factorial is the product of all positive integers from 1 to n. For example: 5! = 5 × 4 × 3 × 2 × 1 = 120. Factorials grow extremely fast — 20! is already 2.43 quintillion. They appear in combinatorics, probability, and series calculations.