Python .asin()

Returns the arcsine of a value, giving an angle in radians between -π/2 and π/2 for inputs ranging from -1 to 1.

Syntax

To return the arcsine of an input value x ranging from -1 to 1 the following syntax is used.

math.asin(x)

Example 1

In the following example, the math.asin() function is used to return the arcsine of 1:

import math

print(math.asin(1))

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The above code gives the following output measured in radians:

1.5707963267948966

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Example 2

In the following code block, the math.asin() is used to return the arcsine of -0.5:

import math

print(math.asin(-0.5))

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The above code gives the following output measured in radians:

-0.5235987755982989

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Codebyte Example

Run the following example that uses the math.asin() inverse function to understand its working:

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