๐งฎ Scientific Calculator
Full-featured scientific calculator with trig functions, logarithms, powers, memory, and keyboard support.
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How to Use the Scientific Calculator
Click buttons or use your keyboard to build expressions. Results update when you press = or Enter.
Keyboard Shortcuts
| Key | Action |
|---|---|
| 0โ9, . | Number input |
| + โ * / ^ | Operators |
| ( ) | Parentheses |
| Enter or = | Calculate |
| Escape | Clear all (AC) |
| Backspace | Delete last character |
| % | Modulo |
DEG vs RAD Mode
Toggle between DEG (degrees) and RAD (radians) for trigonometric functions. Most everyday calculations use degrees. Scientific and engineering work uses radians (ฯ radians = 180ยฐ).
INV โ Inverse Functions
Press INV to switch to inverse trig functions (arcsin, arccos, arctan) and antilogarithms (10หฃ and eหฃ).
Memory Functions
- MS โ Store current value in memory
- MR โ Recall memory value
- M+ โ Add current value to memory
- Mโ โ Subtract current value from memory
- MC โ Clear memory
What does the EXP button do? +
EXP enters scientific notation. For example, pressing 2 โ EXP โ 8 gives 2ร10โธ = 200,000,000. This is useful for very large or very small numbers in science and engineering.
What is modulo (mod)? +
Modulo returns the remainder after integer division. For example, 17 mod 5 = 2 (because 17 รท 5 = 3 remainder 2). It's widely used in programming, cryptography, and number theory.
How do I calculate sin(45ยฐ)? +
Make sure DEG mode is selected, type 4 5, then press the sin button. The result is approximately 0.7071. In RAD mode, you would type the angle in radians (ฯ/4 โ 0.7854) before pressing sin.