modeling-app/docs/kcl/tan.md

---
title: "tan"
excerpt: "Computes the tangent of a number (in radians)."
layout: manual
---

Computes the tangent of a number (in radians).



```js
tan(num: number) -> number
```

### Examples

```js
const myVar = tan(2 * pi())
```

### Arguments

* `num`: `number` (REQUIRED)

### Returns

`number`