Real Function/Examples/Square Root

Example of Real Function
The (real) square root function is the real function $f: \R \to \R$ defined on the positive real numbers as:
 * $\forall x \in \R_{\ge 0}: f \left({x}\right) = \sqrt x$


 * SquareRootFunction.png

Also see

 * Domain of Real Square Root Function
 * Image of Real Square Root Function