... returns 10 and 15 : SELECT ABS( -10 ), ABS (15 ); You use the ACOS(), ASIN(), and ATAN() functions to get the arccosine, arcsine, and arctangent of a number. The following example returns 0.0, 1. 5707963267948966, ... returns 1 and -2: SELECT FLOOR (1. 4), FLOOR( -1. 4); You use the PI() function to get the mathematical constant Pi. The following example returns 3 .14 159265358979 31: SELECT PI(); You use the ... number. The following example returns 0.0, 1. 5707963267948966, and 0.78539 816 339744828: SELECT ACOS (1) , ASIN (1) , ATAN (1) ; You use the CEILING() function to get the smallest integer greater than...