Scientific Calculator

Full-featured online scientific calculator with trig, log, exponent, and factorial functions.

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Scientific Calculator Formula & How It Works

sin(x), cos(x), tan(x), log(x), ln(x), xⁿ, √x, x!, π, e
  • Trig: sin, cos, tan and their inverses (arcsin, arccos, arctan)
  • Logarithms: common log (log₁₀), natural log (ln)
  • Constants: π ≈ 3.14159, e ≈ 2.71828
  • Factorial: n! = n × (n−1) × … × 1

Scientific calculators extend basic arithmetic with functions needed in science, engineering, and advanced mathematics. BODMAS/PEMDAS applies. Angles can be in degrees or radians — check mode before using trig functions. Most scientific calculations in the real world use radians (calculus, physics).

Scientific Calculator FAQs

When should I use degrees vs radians?

Degrees: practical angles (construction, navigation, everyday). Radians: mathematical and physical formulas (calculus, physics). π radians = 180°. Convert: degrees × π/180 = radians. Most calculators have a mode switch — always check before using trig functions.

What does the EE or ×10ˣ button do?

The EE (Enter Exponent) or ×10ˣ button inputs scientific notation. Press 6.02 EE 23 to enter 6.02×10²³ (Avogadro's number) without typing all the zeros. Critical for physics and chemistry calculations.

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