Standard
History
A comprehensive guide to using all features of your standard calculator
| Button | Description | Example |
|---|---|---|
| C | Clear the entire input | Press "C" to reset input from any state |
| ⌫ | Delete the last entered character | 45+⌫ → 45 |
| 0–9 | Insert digits | Click "1", then "2" → displays 12 |
| . | Decimal point for floating numbers | 3.14 |
| + | Addition | 5 + 3 = 8 |
| − | Subtraction | 10 − 4 = 6 |
| × | Multiplication | 6 × 7 = 42 |
| ÷ | Division | 12 ÷ 4 = 3 |
| = | Calculate the result | 8 × 2 = → 16 |
| x² | Square the number | 5 → x² → 25 |
| √x | Square root | 9 → √x → 3 |
| 1/x | Reciprocal | 4 → 1/x → 0.25 |
| ± | Toggle sign | 5 → ± → -5 |
| % | Percentage | 80 → % → 0.8 |