asin

The asin function calculates the angle whose sine is the specified number (the inverse operation of sin).

Syntax

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    asin( X )

Arguments

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• X: A real number in range [-1, 1].

Returns

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Returns the value of the arc sine of X. Returns null if X < -1 or X > 1.

Examples

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This example returns 1.5707963267948966;

print num = 1
| extend newField = asin( num )