Scientific Calculator
A full-featured scientific calculator with trig, logarithms, powers, and memory functions.
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What is Scientific Calculator?
A scientific calculator performs arithmetic operations as well as advanced mathematical functions including trigonometry (sin, cos, tan), logarithms (log, ln), powers, square roots, and constants like π. It supports keyboard input and is suitable for students, engineers, and anyone needing more than basic arithmetic.
How to use
- 1 Click buttons or use your keyboard to enter numbers and operators.
- 2 Use the function buttons (sin, cos, tan, ln, log, x², √) to apply math functions to the current value.
- 3 Press = or Enter to evaluate the expression.
- 4 Press C to clear, or ⌫ (Backspace) to delete the last character.
Formula
Example calculation
To calculate sin(30°), type 30 and press sin — the result is 0.5. To compute 2^10, type 2, press xⁿ, then type 10 and press =. The answer is 1024.
Frequently asked questions
Does this calculator use degrees or radians for trig functions?
This calculator uses degrees for trigonometric functions (sin, cos, tan). Enter angles in degrees — for example, sin(90) = 1.
How do I calculate a power like 3^4?
Type 3, press the xⁿ button (which inserts the ** operator), then type 4 and press = to get 81.
Can I type expressions directly with the keyboard?
Yes. The calculator supports keyboard input for digits, +, -, *, /, ., Enter (=), Backspace (⌫), and Escape (C).
What does the ± button do?
The ± button toggles the sign of the current number, making it positive if negative and negative if positive.
How do I use parentheses?
Use the ( and ) buttons in the second row of function buttons to group expressions. For example, (2+3)×4 evaluates the addition before the multiplication.