# Arc Sine

Block Group: | Trigonometric Functions |

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The Arc Sine block returns the arcsine, or inverse sine, of a number, in degrees. The arcsine of *n* is the angle for which *n* is the sine.

For information on using dataflow blocks, see Dataflow.

## Input/Output Property

The following property of the Arc Sine block can take input and give output.

- input
*(number)*

**input** defines the sine to get the angle for. Must be between −1 and 1.

## Output Property

The following property of the Arc Sine block can give output but cannot take input.

- output
*(number)*

**output** returns the arcsine of the input, in degrees.

## Example

The following image shows an example of the Arc Sine block. In this example, the sine is 1, and the arcsine is 90 degrees.