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 [

/2,

/2] (that is,

/2 < ASIN(x) <

/2).
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_2, marker_1, marker_2) / DM(marker_2, marker_1). It then applies the ASIN function to the result and returns its arc sine. The location of marker_1 and marker_2 is shown in the figure below.
Function | ASIN(DY(marker_2, marker_1, marker_2) / DM(marker_2, marker_1)) |
Returns | 45 |