Scientific Calculator
Calculation History
- No history yet. Start calculating!
How to Use the Scientific Calculator
- 1Select angle mode: DEG (degrees) or RAD (radians) using the toggle button in the top-left.
- 2Enter your calculation using the keypad or type directly on your keyboard.
- 3For functions like sin, cos, log: click the function button first, then enter the number.
- 4Press = or Enter to calculate. Results appear instantly with expression history.
- 5Use memory buttons (M+, M-, MR, MC) to store and recall values across calculations.
Features
Trig Functions
sin, cos, tan and their inverses in both degree and radian mode.
Logarithms
Common log (base 10) and natural log (base e) support.
Power & Root
x raised to power y, square root, with standard notation.
Memory Functions
M+, M-, MR, MC for storing and recalling intermediate results.
Calculation History
Last 10 calculations saved. Click any entry to reuse it.
Keyboard Support
Type expressions directly. Press Enter to calculate, Escape to clear.
Use Cases
- Students solving trigonometry and algebra homework without a physical calculator.
- Engineers and scientists computing logarithmic or exponential values quickly.
- Teachers demonstrating mathematical concepts on a projected screen.
- Finance professionals calculating compound growth or present value formulas.
- Developers verifying math outputs in code by comparing with a trusted calculator.
Frequently Asked Questions
What functions does the scientific calculator support?
The calculator supports trigonometric functions (sin, cos, tan and inverses), log (base 10), natural log (ln), square root, power (xʸ), factorial (!), constants π and e, and memory functions M+, M-, MR, MC.
Can I switch between degrees and radians?
Yes. Click the DEG/RAD toggle button. The current mode is shown both on the button and above the display.
Can I use keyboard input?
Yes. Type numbers and operators (+, -, *, /, ^, (, )) directly. Press Enter or = to calculate, Escape to clear all, Backspace to delete the last character.
Is calculation history saved between sessions?
The current session history is shown in the panel. It is not persisted after you close or refresh the page.
Does the calculator work offline?
All calculation logic runs in your browser with no server calls. Once the page is loaded, it works without an internet connection.