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65 lines
1.6 KiB
Markdown
65 lines
1.6 KiB
Markdown
# All Your Base
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Convert a number, represented as a sequence of digits in one base, to any other base.
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Implement general base conversion. Given a number in base **a**,
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represented as a sequence of digits, convert it to base **b**.
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## Note
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- Try to implement the conversion yourself.
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Do not use something else to perform the conversion for you.
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## About [Positional Notation](https://en.wikipedia.org/wiki/Positional_notation)
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In positional notation, a number in base **b** can be understood as a linear
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combination of powers of **b**.
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The number 42, *in base 10*, means:
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(4 * 10^1) + (2 * 10^0)
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The number 101010, *in base 2*, means:
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(1 * 2^5) + (0 * 2^4) + (1 * 2^3) + (0 * 2^2) + (1 * 2^1) + (0 * 2^0)
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The number 1120, *in base 3*, means:
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(1 * 3^3) + (1 * 3^2) + (2 * 3^1) + (0 * 3^0)
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I think you got the idea!
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*Yes. Those three numbers above are exactly the same. Congratulations!*
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## Elm Installation
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Refer to the [Exercism help page](http://exercism.io/languages/elm) for Elm
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installation and learning resources.
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## Writing the Code
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The first time you start an exercise, you'll need to ensure you have the
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appropriate dependencies installed.
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```bash
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$ npm install
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```
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Execute the tests with:
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```bash
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$ npm test
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```
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Automatically run tests again when you save changes:
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```bash
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$ npm run watch
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```
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As you work your way through the test suite, be sure to remove the `skip <|`
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calls from each test until you get them all passing!
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## Submitting Incomplete Solutions
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It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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