先上JAVA官方文档 /*** Rounding mode to round away from zero. Always increments the* digit prior to a nonzero discarded fraction. Note that this rounding* mode never decreases the magnitude of the cal
fmod()函数:对浮点数进行取模(求余) Example: #include <stdio.h>#include <math.h>int main (){printf ("fmod of 3.14/2.1 is %lf\n", fmod (3.14,2.1) );return 0;} Output: fmod of 3.14/2.1 is 1.04000
undefined reference to 'floor'/undefined reference to `& undefined reference to 'pow'/undefined reference to `& 今天用linux编译一个程序的时候遇到了一个小问题,如标题所示,先说解决方法 在gcc 编译的时候加上-lm选项就好了,呵呵 原因:floor/cei
题目: 题解: --这道题主要考察中位数的取法SELECT category_id,cast(sum(price)/count(1) as DECIMAL(16,2)) medpricefrom(SELECTcategory_id,price,rn,max(rn)over(partition by category_id) max_rnfrom(SELECTcategory_id,pr