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Calculator
Simple everyday calculator with keyboard support
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About the Calculator
This calculator handles everyday arithmetic and, in Scientific mode, trigonometric functions, logarithms, powers, factorials and constants like π and e. It supports full keyboard input, memory functions, and a running history of past calculations.
How to Use the Calculator
- Type or click numbers and operators to build your expression.
- Switch to Scientific mode for trig, log and other advanced functions.
- Use the memory buttons (MC, MR, M+, M-) to store and recall values.
- Press = to calculate, and check History for past results.
Key Features
- Standard and Scientific calculation modes
- Full keyboard support
- Memory functions (MC, MR, M+, M-)
- Calculation history
FAQ
Can I use my keyboard instead of clicking buttons?
Yes, number keys, operators and Enter all work as expected.
What scientific functions are available?
Sine, cosine, tangent and their inverses, square root, logarithms, factorial, absolute value, powers, and the constants π and e.
Can I see my previous calculations?
Yes, click History to view and clear your recent calculations.
Is my calculation history saved anywhere?
No, history is kept only in your current browser session.