Calculators · 5 min read
Scientific Calculator Guide — Functions & How to Use Them
Need to solve sin(45°), log(1000), or e^2 without a physical calculator? Here's a guide to the most important scientific calculator functions and what they mean.
Key Scientific Calculator Functions
| Function | Meaning | Example |
|---|---|---|
sin / cos / tan | Trigonometric ratios | sin(30°) = 0.5 |
asin / acos / atan | Inverse trig (arc functions) | asin(0.5) = 30° |
log | Base-10 logarithm | log(1000) = 3 |
ln | Natural log (base e) | ln(e) = 1 |
x² | Square of x | 5² = 25 |
√x | Square root | √81 = 9 |
xʸ | x to the power of y | 2⁸ = 256 |
n! | Factorial | 5! = 120 |
π | Pi (3.14159…) | Area = π × r² |
e | Euler's number (2.71828…) | Compound growth |
Frequently Asked Questions
Trigonometry, logarithms, exponents, roots, factorials, and constants like π and e. Essential for math, physics, engineering, and statistics.
log is base 10 (log(100) = 2). ln is natural log, base e ≈ 2.71828 (ln(e) = 1). Use log for pH and decibels; ln for exponential growth and calculus.
Trig functions for right triangles: sin = opposite/hypotenuse, cos = adjacent/hypotenuse, tan = opposite/adjacent. Core to geometry, physics, and engineering.
Use PickConverter's free Scientific Calculator. All standard functions including trig, logarithms, exponents, and constants — no sign-up required.
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