50 lines
1.9 KiB
Markdown
50 lines
1.9 KiB
Markdown
# 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
|