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Julio Biason
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3 years ago | |
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.exercism | 3 years ago | |
HELP.md | 3 years ago | |
README.md | 3 years ago | |
ResistorColor.php | 3 years ago | |
ResistorColorTest.php | 3 years ago |
README.md
Resistor Color
Welcome to Resistor Color on Exercism's PHP Track.
If you need help running the tests or submitting your code, check out HELP.md
.
Instructions
Resistors have color coded bands, where each color maps to a number. The first 2 bands of a resistor have a simple encoding scheme: each color maps to a single number.
These colors are encoded as follows:
- Black: 0
- Brown: 1
- Red: 2
- Orange: 3
- Yellow: 4
- Green: 5
- Blue: 6
- Violet: 7
- Grey: 8
- White: 9
Mnemonics map the colors to the numbers, that, when stored as an array, happen to map to their index in the array: Better Be Right Or Your Great Big Values Go Wrong.
More information on the color encoding of resistors can be found in the Electronic color code Wikipedia article