1.下载QT5 SDK 下载地址:http://qt-project.org/downloads. 2.安装QT5 下载完后,假设放在Download/,切换到该目录,输入:./qt-linux-opensource-5.0.0-x86-offline.run运行: 出现以下错误:./qt-linux-opensource-5.0.0-x86-offline.run: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (req
Monthly Expense Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 25959 Accepted: 10021 Description Farmer John is an astounding accounting wizard and has realized he might run out of money to run the farm. He has already calculated and
--PACKAGE CREATE OR REPLACE PACKAGE test_141215 is TYPE type_ref IS record( ENAME ), SAL )); TYPE t_type_ref IS TABLE OF type_ref; FUNCTION retrieve(v_name varchar2) RETURN t_type_ref PIPELINED; END test_141215; -- PACKAGE BODY CREATE OR REPLACE PACK
Since it is just a sort of discussion, I will just give the formula and condition without proving them or leaving examples. General: Line integral(Work and in the plane) $\int_{C}\vec{F}\cdot \mathrm{d}\vec{r} = \int_{C}M\mathrm{d}x+N\mathrm{d}y$, in
