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Memory: 0
How to Use the Scientific Calculator
This calculator supports standard arithmetic plus scientific functions. Use DEG mode for degree-based trig, RAD for radians. Press INV to access inverse trig functions (sin⁻¹, cos⁻¹, tan⁻¹).
Function Reference
| Function | Example | Result |
|---|---|---|
| sin (DEG) | sin(30) | 0.5 |
| cos (DEG) | cos(60) | 0.5 |
| log | log(100) | 2 |
| ln | ln(e) | 1 |
| √x | √(144) | 12 |
| xʸ | 2 ** 10 | 1024 |
| n! | 5! | 120 |
| π | 2 × π | 6.2832… |
Memory Functions
MS — stores current result to memory. MR — recalls memory value. MC — clears memory.
Frequently Asked Questions
This calculator supports: basic arithmetic, trigonometric functions (sin, cos, tan and their inverses), natural log (ln), base-10 log, square root, powers, factorial (!), π, e, and memory functions (MC, MR, M+, MS). It also supports both Degree and Radian modes.
Use degrees for everyday geometry and navigation (right angle = 90°). Use radians in calculus, physics, and engineering (right angle = π/2 ≈ 1.5708 radians). Always check which mode is active before using sin, cos, or tan — wrong mode is a common calculation error.
Calculations follow PEMDAS/BODMAS: Parentheses, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right). Use parentheses liberally to ensure your expression is evaluated correctly.
Factorial (n!) is the product of all positive integers up to n. For example, 5! = 5 × 4 × 3 × 2 × 1 = 120. Factorials grow extremely rapidly: 20! has 19 digits. Enter the number and press the ! button.