Calculator
This calculator performs all the basic mathematical operations that you may need in everyday life. Examples are given for all possible actions. If you need more functions, use a scientific calculator. More: Scientific Calculator
How to use the calculator
| Buttons | Usage |
|---|---|
| 1 2 3 4 5 6 7 8 9 0 | Entering numbers |
| + − × ÷ | Performing basic mathematical operations (addition, subtraction, multiplication, division): 2 + 3 = 5 |
| = | Getting the result of the calculation |
| C | Clearing the calculator screen |
| ← | Deleting the last entered symbol: 1 2 3 4 ← 123 |
| ± | Changing the sign of a number from positive to negative and vice versa: 3 ± −3 |
| ( ) | Entering parentheses: ( 2 + 2 ) × 2 = 8 |
| . | Separating the fractional part in a decimal fraction: 0 . 1 + 0 . 2 = 0.3 More: Fractions |
| ÷ | Dividing the numerator and denominator in a common fraction: 5 ÷ 8 − 1 ÷ 4 = 3/8 More: Fractions |
| 1/x | Calculating the reciprocal of a number: 5 1/x = 0.2 |
| x2 x3 xy 10X | Raising to a power: 3 x2 = 9 2 xy 4 = 16 5 10X = 100 000 More: Exponentiation |
| √x 3√x y√x | Finding the root of a number: 1 2 5 3√x = 5 1 6 y√x 4 = 2 More: Root of a number |
| , | Separating function arguments: log 9 , 3 = 2 |
| log | Calculating the logarithm: log 1 6 , 2 = 4 More: Logarithms |
| e | Entering the mathematical constant e: log 1 , e = 0 |