# PostgreSQL SIN() function

## SIN() function

The PostgreSQL sin() function is used to return the sine of a given argument, where the argument is an angle in radians.

##### Uses of SIN() Function
• Trigonometric Calculations: To perform trigonometric operations involving sine functions.

• Mathematical Operations: Useful in various mathematical formulas that require the sine of an angle.

• Engineering Applications: Employed in engineering fields for calculations related to waves, oscillations, and circular motion.

• Scientific Research: Used in scientific research for modeling periodic phenomena and solving trigonometric equations.

• Data Analysis: Utilized in data analysis tasks where trigonometric transformations are necessary.

Syntax:

```sin(a)
```

PostgreSQL Version: 9.3

Pictorial presentation of PostgreSQL SIN() function

Example 1: PostgreSQL SIN() function

Code:

``````SELECT SIN(0) AS "Sin (0)";
```
```

Sample Output:

``` Sin (0)
---------
0
(1 row)
```

Example 2: PostgreSQL SIN() function

Code:

``````SELECT SIN(1) AS "Sin (1)";
```
```

Sample Output:

```      Sin (1)
-------------------
0.841470984807897
(1 row)
```

Example 2: PostgreSQL SIN() function

Code:

``````SELECT SIN(-1) AS "Sin (-1)";
```
```

Sample Output:

```      Sin (-1)
--------------------
-0.841470984807897
(1 row)
```

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