MySQL数据库

开发平台：

Visual C++

func_math.test：源码内容

							#
# Test of math functions
#
select floor(5.5),floor(-5.5);
select ceiling(5.5),ceiling(-5.5);
select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2);
select round(5.5),round(-5.5);
select round(5.64,1),round(5.64,2),round(5.64,-1),round(5.64,-2);
select abs(-10), sign(-5), sign(5), sign(0);
select log(exp(10)),exp(log(sqrt(10))*2);
select pow(10,log10(10)),power(2,4);
select rand(999999),rand();
select pi(),sin(pi()/2),cos(pi()/2),abs(tan(pi())),cot(1),asin(1),acos(0),atan(1);
select degrees(pi()),radians(360);

						