How to use the scientific calculator
- Type an expression in the box, or tap the keys. You can mix both — for example, type
2^10and press =. - Choose Degrees or Radians for trigonometric functions.
- The answer updates as you type. Use ⌫ to delete one character and AC to clear.
Supported operations
| Type | Example | Result |
|---|---|---|
| Add, subtract, multiply, divide | 12 + 3*4 - 10/2 | 19 |
| Powers | 2^10 | 1,024 |
| Square and cube roots | sqrt(144), cbrt(27) | 12, 3 |
| Trigonometry (degrees) | sin(30), cos(60), tan(45) | 0.5, 0.5, 1 |
| Inverse trig | asin(0.5) | 30° |
| Logarithms | log(1000), ln(e) | 3, 1 |
| Factorial | 5! | 120 |
| Percent | 15% * 80 | 12 |
| Constants | 2pi, e^2 | 6.2832, 7.3891 |
Order of operations
The calculator follows standard math rules (often remembered as PEMDAS or BODMAS): parentheses first, then exponents, then multiplication and division from left to right, then addition and subtraction. So 2 + 3 × 4 = 14, not 20. Powers are evaluated right to left, so 2^3^2 = 2^9 = 512, and -2^2 = -4 because the power is applied before the minus sign.
Degrees vs. radians
A full circle is 360 degrees or 2π radians, so 180° = π radians. Use degrees for everyday geometry, construction and navigation; use radians for calculus and physics. If sin(30) gives −0.988 instead of 0.5, the calculator is in radian mode.
log vs. ln
log is the common logarithm, base 10: log(100) = 2 because 10² = 100. ln is the natural logarithm, base e ≈ 2.71828: ln(e) = 1. To use another base, divide: log₂(8) = log(8) ÷ log(2) = 3.
Keyboard tips
- Use
*for ×,/for ÷ and^for powers. - You can skip the multiplication sign before parentheses and constants:
2(3+4)and3piboth work. - Press Enter to calculate.
Frequently asked questions
How do I calculate sin, cos and tan?
Type the function followed by the angle in parentheses, such as sin(30), and make sure the angle mode matches your angle — degrees or radians. sin(30°) = 0.5.
How do I calculate exponents?
Use the ^ symbol or the xʸ key. For example, 3^4 = 81 and 2^0.5 is the square root of 2 (about 1.4142). For squares, the x² key adds ^2.
What is the difference between log and ln?
log is the base-10 logarithm, used in science and engineering scales such as decibels and pH. ln is the natural logarithm with base e (about 2.71828), used in calculus, growth and decay.
How do I calculate a factorial?
Type the number followed by an exclamation mark, such as 6!, which equals 720. Factorials are defined for whole numbers from 0 to 170 in this calculator (0! = 1).
Does this calculator follow the order of operations?
Yes. Parentheses come first, then powers, then multiplication and division, then addition and subtraction — so 2 + 3 × 4 equals 14.
Results are rounded for display. For academic or professional work, double-check critical calculations and follow the rounding rules your teacher, school or organization requires.
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