Square Root Calculator
Calculate the real principal square root of a non-negative number and show a square check.
How to use
- Enter a non-negative number.
- Calculate and compare the root with the displayed result² check.
Capabilities and scope
For x, the runner evaluates √x and does not implement complex square roots.
How it works
The real root is evaluated with JavaScript Math.sqrt.
Example
Entering 144 returns 12 and the check 12² = 144.
Useful for
- Recover a square side length from its area
- Check the principal root in a squared relationship
Before you use it
- Complex roots of negative inputs are not supported.
Frequently asked questions
Does it return both ± roots?
No. It returns the non-negative principal value denoted by √x.