Firebird Documentation Index → Firebird 2.1 Language Ref. Update → Internal functions → ASIN() |
Available in: DSQL, PSQL
Added in: 2.1
Description: Returns the arc sine of the argument.
Result type: DOUBLE PRECISION
Syntax:
ASIN (number
)
The result is an angle in the range [-π/2, π/2].
If the argument is outside the range [-1, 1], NaN is returned.
If the external function ASIN
is declared in your database, it will override the internal function. To make the internal function available, DROP or ALTER the external function (UDF).
Firebird Documentation Index → Firebird 2.1 Language Ref. Update → Internal functions → ASIN() |