acos
Declaration
double* function acos(double* X)
Description
acos returns the arc cosine of X.. X should be between -1 and 1. Acos
returns a value between 0 and pi.
Example Stored Procedure
CREATE PROCEDURE test_acos (x DOUBLE PRECISION)
RETURNS (result DOUBLE PRECISION) AS
BEGIN
result = acos(x);
END!!
WISQL - calling the example stored procedure
execute procedure test_acos(.1);
RESULT
======================
1.470628905633337
execute procedure test_acos(1);
RESULT
======================
0
Error Results - restrictions on X are : -1 < X < 1
execute procedure test_acos(1.1);
RESULT
======================
-999999
execute procedure test_acos(-1.1);
RESULT
======================
-999999