%% max z=2x1+3x2-5x3 %% s.t. x1+x2+x3=7 %% x1+3x2+x3<=12 %% x1,x2,x3>=0 clear all; close all; f=[-2;-3;5]; a=[-2,5,-1;1,3,1];b=[10;12]; aeq=[1,1,1];be ...
分类:
其他好文 时间:
2021-04-24 11:47:33
阅读次数:
0
Avin is studying series. A series is called "wave" if the following conditions are satisfied: It contains at least two elements; All elements at odd p ...
分类:
其他好文 时间:
2021-04-23 12:27:42
阅读次数:
0
1. 用union结构区分大小端 #define read_bits(stc, field)({stc.raw = 0x12345678; stc.bits.field;}) union a{ unsigned int raw; struct { unsigned int bit_a : 8; un ...
分类:
其他好文 时间:
2021-04-23 12:09:11
阅读次数:
0
#!/usr/bin/env python #-*- coding:utf-8 -*- num=0 while num<=10: print(num,end="\t") num +=1 print("**************************") num2=0 sum_all=0 whil ...
分类:
其他好文 时间:
2021-04-22 16:16:24
阅读次数:
0
Span one vector to a line Let \(\mathbf{v}\) be a nonzero vector in \(\mathbb{R}^{3} .\) Then \(\operatorname{Span}\{\mathbf{v}\}\) is the set of all ...
分类:
其他好文 时间:
2021-04-22 16:15:07
阅读次数:
0
具体错误如下,同时伴有collecting package metadata:加载时间巨长 解决方案: 输入conda clean --all清除之前未完成的conda安装的包就可以正常创建环境了。 感谢CSDN的这位伙伴https://blog.csdn.net/weixin_44424340/a ...
分类:
其他好文 时间:
2021-04-22 16:04:55
阅读次数:
0
MySQL中"full outer join"的实现 表ta 表tb 使用:【left join】 union 【right join】 select t1.dim_a, t1.qty qty_a, t2.dim_a dim_b, t2.qty qty_b from ta t1 left join ...
分类:
数据库 时间:
2021-04-22 15:56:52
阅读次数:
0
/* * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. ...
分类:
其他好文 时间:
2021-04-22 15:39:53
阅读次数:
0
Given an m x n matrix, return all elements of the matrix in spiral order. Example 1: Input: matrix = [[1,2,3],[4,5,6],[7,8,9]] Output: [1,2,3,6,9,8,7, ...
分类:
其他好文 时间:
2021-04-22 15:34:12
阅读次数:
0
##合并表select * from empunion allselect * from dept; select * from emp,dept;##连接查询select* from emp,dept where emp.deptno = dept.deptno; ##标准写法select *fr ...
分类:
数据库 时间:
2021-04-22 15:30:06
阅读次数:
0