Quick Answer
A scientific calculator evaluates expressions with arithmetic, powers (xⁿ), roots (√), trig functions (sin, cos, tan in degrees), and logarithms (log = base 10, ln = natural). Enter the expression and press = to evaluate.
What Is a Scientific Calculator?
A scientific calculator goes beyond basic arithmetic, supporting trigonometry, logarithms, square roots, arbitrary powers, and mathematical constants like π and e — the operations needed for science, engineering, physics, and advanced mathematics.
This calculator evaluates full multi-step expressions like 'sin(30) + 2^8 / 4' in one step, respecting standard order of operations (BODMAS/PEMDAS). Trigonometric functions operate in degrees. 'log' means log base 10; 'ln' means the natural logarithm (base e).
How to Use This Scientific Calculator
- 1Tap function buttons to build your expression, or type directly into the display.
- 2Use sin(, cos(, tan( for trigonometry — always close the parenthesis.
- 3Use log( for base-10 log, ln( for natural log, √( for square root, ^ for power.
- 4Press = to evaluate, C to clear, ⌫ to delete the last character.
The Formula Explained
Trig (degrees)
sin(θ) cos(θ) tan(θ)Powers / roots
x^2 x^n √(x)Logarithms
log(x) = log₁₀(x) ln(x) = logₑ(x)Constants
π ≈ 3.14159265 e ≈ 2.71828183Example: Area of a circle with diameter 10 cm
- Radius = 5 cm
- Type: π*5^2
≈ 78.5398 cm²
Tips & Things to Know
- Always close parentheses — sin(30 without ) will produce an Error.
- sin, cos, tan here work in DEGREES: sin(90) = 1, cos(0) = 1.
- log(100) = 2 (because 10² = 100). ln(e) = 1. ln(1) = 0.