Scientific Calculator
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Full-featured scientific calculator with trigonometry, logarithms, exponents, factorials, and constants. Keyboard friendly.
Scientific Calculator
Mode: DEG
Memory: 0
About This Tool
Scientific Calculator Features
- Trigonometry: sin, cos, tan + inverse, in degrees or radians
- Logarithms: log (base 10), ln (natural log)
- Powers and roots: x², x³, xʸ, √x, ∛x
- Factorial (n!), absolute value, modulo
- Constants π and e
- Memory: store, recall, clear
- Full keyboard support
Operator Precedence
The calculator follows standard mathematical order of operations: parentheses → exponents → multiplication/division → addition/subtraction. Use parentheses generously to avoid ambiguity.Frequently Asked Questions
How do I switch between degrees and radians?
Tap the DEG/RAD button on the keypad. The current mode is shown above the keys. Trigonometric inputs are interpreted in the selected mode.
Why does my factorial show Infinity?
Factorials grow extremely fast. 170! is the largest integer JavaScript can represent precisely; 171! and above overflow to Infinity. For larger values you need an arbitrary-precision math library.
Can I use my keyboard?
Yes — type numbers and operators directly. Press Enter to evaluate. The display also accepts paste.