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Returns the arc-cosine, in radians, of a numeric expression. Supported in UltraLite but not UltraLiteJ.
ACOS( numeric-expression )
The cosine of the angle.
This function converts its argument to DOUBLE, and performs the computation in double-precision floating-point arithmetic.
The following statement returns the arc-cosine value for 0.52.
SELECT ACOS( 0.52 );