46 lines
27 KiB
Markdown
46 lines
27 KiB
Markdown
---
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title: "rem"
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excerpt: "Compute the remainder after dividing `num` by `div`."
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layout: manual
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---
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Compute the remainder after dividing `num` by `div`.
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If `num` is negative, the result will be too.
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```js
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rem(num: number, divisor: number) -> number
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```
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### Tags
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* `math`
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### Arguments
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| Name | Type | Description | Required |
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|----------|------|-------------|----------|
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| `num` | `number` | The number which will be divided by `divisor`. | Yes |
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| `divisor` | `number` | The number which will divide `num`. | Yes |
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### Returns
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`number`
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### Examples
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```js
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assertEqual(rem(7, divisor = 4), 3, 0.01, "remainder is 3")
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assertEqual(rem(-7, divisor = 4), -3, 0.01, "remainder is -3")
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assertEqual(rem(7, divisor = -4), 3, 0.01, "remainder is 3")
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assertEqual(rem(6, divisor = 2.5), 1, 0.01, "remainder is 1")
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assertEqual(rem(6.5, divisor = 2.5), 1.5, 0.01, "remainder is 1.5")
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assertEqual(rem(6.5, divisor = 2), 0.5, 0.01, "remainder is 0.5")
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```
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