lines 604-638 of file: include/cppad/core/std_math_11.hpp {xrst_begin sqrt} The Square Root Function: sqrt ############################## Syntax ****** *y* = ``sqrt`` ( *x* ) x, y **** See the :ref:`unary_standard_math@Possible Types` for a unary standard math function. Atomic ****** This is an :ref:`atomic operation` . Derivative ********** .. math:: \R{sqrt}^{(1)} (x) = \frac{1}{2 \R{sqrt} (x) } Example ******* {xrst_toc_hidden example/general/sqrt.cpp } The file :ref:`sqrt.cpp-name` contains an example and test of this function. {xrst_end sqrt}