modeling-app/docs/kcl/rem.md

---
title: "rem"
excerpt: "Compute the remainder after dividing `num` by `div`."
layout: manual
---

Compute the remainder after dividing `num` by `div`.

If `num` is negative, the result will be too.

```js
rem(num: i64, divisor: i64) -> i64
```

### Tags

* `math`


### Arguments

| Name | Type | Description | Required |
|----------|------|-------------|----------|
| `num` | `i64` |  | Yes |
| `divisor` | `i64` |  | Yes |

### Returns

`i64` 


### Examples

```js
assertEqual(rem(int(7), int(4)), 3, 0.01, "remainder is 3")
assertEqual(rem(int(-7), int(4)), -3, 0.01, "remainder is 3")
assertEqual(rem(int(7), int(-4)), 3, 0.01, "remainder is 3")
```

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