+---------------------------------+
|              ASIN               |
+---------------------------------+
ASIN(<expN>)

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Returns (in radians) arc sine of <expN>.
Return value - Numeric
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This trigonometric function returns the arc sine of <expN>, a value in
radians between -pi/2 and +pi/2.  The value of <expN> may range between
+1 and -1.

You can convert the angle returned by ASIN() to degrees with the RTOD()
function.  The number of decimal places in the result is specified with
the SET DECIMALS command.

+---------------------------------+
|             Examples            |
+---------------------------------+
? RTOD(ASIN(0))

STORE 1 to arcangle
? RTOD(ASIN(arcangle))

? RTOD(ASIN(SQRT(2)/2))

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See Also:  RTOD(), SET DECIMALS, SIN()

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