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ASIN

Returns the arc sine of an expression that represents a numerical value. ASIN is defined only when the absolute value of the expression is <1 . The range of ASIN is (that is, ).

Format

ASIN(x)

Argument

 

x	Any valid expression that evaluates to a real number.

Example

The following function calculates the value of the expression:

DX(marker_21, marker_11) / DM(marker_21, marker_11)

and then applies the ASIN function to the result and returns its arc sine in radians:

ASIN(DX(marker_21, marker_11) / DM(marker_21, marker_11))