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# MySQL | ASIN method

schedule Aug 12, 2023
Last updated
local_offer
MySQL
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MySQL's `ASIN(~)` method computes the arc sine of the input value.

# Parameters

1. `X` | `number`

A number in the range -1 to 1.

# Return Value

The arc sine of the input number.

# Examples

## Basic usage

To return the arc sine for `1`:

``` SELECT ASIN(1); +--------------------+| ASIN(1) |+--------------------+| 1.5707963267948966 |+--------------------+ ```

To return the arc sine for `-0.5`:

``` SELECT ASIN(-0.5); +---------------------+| ASIN(-0.5) |+---------------------+| -0.5235987755982988 |+---------------------+ ```

## Invalid input

If we specify an input outside of range `-1` to `1`:

``` SELECT ASIN(2); +---------+| ASIN(2) |+---------+| NULL |+---------+ ```
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