Scientific Calculator
Full-featured calculator with trig, logarithms, and more. Works offline.
Tips
Keyboard: type numbers and operators, Enter to evaluate.
Frequently Asked Questions
What is sin(30) in degrees?↓
sin(30°) = 0.5. In degrees mode, sin(30) returns 0.5 because 30° is exactly one-sixth of a full circle, and the sine of 30° is one-half.
What is log(100)?↓
log(100) = 2. The log function here is base-10 (common logarithm). Since 10² = 100, log₁₀(100) = 2. To compute the natural logarithm (base e), use ln(100) ≈ 4.6052.
What is 5 factorial (5!)?↓
5! = 5 × 4 × 3 × 2 × 1 = 120. Factorial is the product of all positive integers up to n. Enter '5!' in the calculator to get 120.
What is the difference between DEG and RAD mode?↓
In DEG (degree) mode, angles are measured in degrees (0–360). In RAD (radian) mode, angles are measured in radians (0–2π). For example, sin(90) = 1 in DEG mode, but you would need sin(π/2) ≈ sin(1.5708) = 1 in RAD mode. Use DEG for everyday calculations and RAD for calculus and physics.
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