Arithmetic & Number Theory
Square Root
Principal square root of x.
Formula
Formula
y = √x
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| x | radicand (≥ 0) | real number (ℝ) | — | input |
| y | square root | computed result | — | result |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenx = 144
Result12
Example 2
Givenx = 2
Result1.414213562