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## Interpolation
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### Instructions
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Create a function called `interpolation` that takes an object with 5 properties
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`step`, `start`, `end`, `callback` and `duration`.
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This function must calculate the interpolation points, (x, y),
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from the `start` position to `end` position depending on the number of `steps`.
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All the points must be calculated in the duration time.
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For each interpolation point you must execute and pass as parameters to the callback the interpolation point ([x, y])
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### Example
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```
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steps = 5
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start = 0
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end = 1
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duration = 10
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t
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10 |___________________. <- execute callback([1.0, 10])
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8 |_______________. |
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6 |___________. | |
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4 |_______. | | |
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2 |___. | | | |
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|___|___|___|___|___|__d
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0 0.2 0.4 0.6 0.8 1
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```
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### Notions
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- [javascript.info/settimeout-setinterval](https://javascript.info/settimeout-setinterval)
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