# arcsin¶

## Purpose¶

Computes the inverse sine.

## Format¶

y = arcsin(x)
Parameters

x (NxK matrix or N-dimensional array) –

Returns

y (NxK matrix or N-dimensional array) – the angle in radians whose sine is x.

## Examples¶

// Set 'x' to be the sequence -1, -0.5, 0, 0.5, 1
x = seqa(-1, 0.5, 5);
y = arcsin(x);


Assigns y to be equal to:

-1.5707963
-0.52359878
0.00000000
0.52359878
1.5707963


## Remarks¶

If x is complex or has any elements whose absolute value is greater than 1, complex results are returned.

trig.src