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# Pascals Triangle
Compute Pascal's triangle up to a given number of rows.
In Pascal's Triangle each number is computed by adding the numbers to
the right and left of the current position in the previous row.
```plain
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
# ... etc
```
## Setup
There are two different methods of getting set up to run the tests with Objective-C:
- Create an Xcode project with a test target which will run the tests.
- Use the ruby gem `objc` as a test runner utility.
Both are described in more detail here: http://exercism.io/languages/objective-c
### Submitting Exercises
When submitting an exercise, make sure your solution file is in the same directory as the test code.
For example, if you're submitting `Bob.m` for the Bob exercise, the submit command would be something like `exercism submit <path_to_exercism_dir>/objective-c/bob/Bob.m`.
## Source
Pascal's Triangle at Wolfram Math World [http://mathworld.wolfram.com/PascalsTriangle.html](http://mathworld.wolfram.com/PascalsTriangle.html)
## Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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