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+# Square Root
+
+Given a natural radicand, return its square root.
+
+Check out the Wikipedia pages on [square root](https://en.wikipedia.org/wiki/Square_root) and [methods of computing square roots](https://en.wikipedia.org/wiki/Methods_of_computing_square_roots).
+
+Note that the term "radicand" refers to the number for which the root is to be determined. That is, it is the number under the root symbol.
+
+Recall also that natural numbers are positive real whole numbers (i.e. 1, 2, 3 and up).
+
+When implementing this in a language with a built-in square root function, implement your own function.
+
+## Getting Started
+
+Make sure you have read the "Guides" section of the
+[C track][c-track] on the Exercism site. This covers
+the basic information on setting up the development environment expected
+by the exercises.
+
+## Passing the Tests
+
+Get the first test compiling, linking and passing by following the [three
+rules of test-driven development][3-tdd-rules].
+
+The included makefile can be used to create and run the tests using the `test`
+task.
+
+    make test
+
+Create just the functions you need to satisfy any compiler errors and get the
+test to fail. Then write just enough code to get the test to pass. Once you've
+done that, move onto the next test.
+
+As you progress through the tests, take the time to refactor your
+implementation for readability and expressiveness and then go on to the next
+test.
+
+Try to use standard C99 facilities in preference to writing your own
+low-level algorithms or facilities by hand.
+
+## Source
+
+wolf99 [https://github.com/exercism/problem-specifications/pull/1582](https://github.com/exercism/problem-specifications/pull/1582)
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.
+
+[c-track]: https://exercism.io/my/tracks/c
+[3-tdd-rules]: http://butunclebob.com/ArticleS.UncleBob.TheThreeRulesOfTdd