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资料二:线性规划几何解的讨论 针对线性规划几何解还有一些重要的性质,这里不加证明叙述如下: (1) 线性规划几何解存在四种情况:()、()、()、()。 (2) 可行域为()时,可能存在唯一最优解,无穷多最优解两种情况; (3) 可行域为()时,可能存在唯一最优解,无穷多最优解,无界解三种情况; (4) 可行域为()时,没有可行解,原问题没有最优解。 ( 5 )若线性规划存在最优解,则最优解或最优解之一肯定能够在可行域的某个( )找到。 求线性规划问题最优解,可以转化为在其可行域( )个极点上进行搜索的方法。基本思路是,先找出可行域( )一个极点,计算极点的目标函数值。判断目标函数值是否最优,如果为否,转到比该点目标函数值更优的( )极点。重复上述过程,直到找出使目标函数值达到最优的极点为止。
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举一反三
【简答题】The reservoirs built by China have a total reserve capacity of over______.
【单选题】以下代码的运行结果为：public class ex2 { public static void main(String[] args) { int total = 0; for(int i = 0,j = 10;total > 30;++i,--j){ System.out.println("I = " + i + " ;j = " + j); total += (i+j); } System....
A.
产生运行错误
B.
产生编译错误
C.
输出 “Total: 0”
D.
输出如下结果： i = 0 ;j = 10 i = 1 ;j = 9 i = 2 ;j = 8 Total: 30
【单选题】以下代码的运行结果为:( ) public class Ex 1 { public static void main(String[] args ) { int total =0; for ( int i =0, j =10; total >30;++ i ,-- j ){ System. out .println( "i=" + i + ":j=" + j ); total +=( i + j ...
A.
产生运行错误
B.
产生编译错误
C.
输出 “ Total 0 ”
D.
产生如下输出： i=0:j=10 i=1:j=9 i=2:j=8 Total 30
【单选题】Q3: {Which of the following is equivalent to this code segment? int total = 0; for (int i = 0; i <= 20; i +=2) total +=i; }
A.
{int total = 0; for (int i = 20; i total += i;}
B.
{int total = 0; for (int i = 0; i <= 20; total += i, i += 2);}< /div>
C.
{int total = 0; for (int i = 0, i <= 20, total += i; i += 2);}< /div>
D.
{int total = 0; for (int i = 2; i
【简答题】如何进行液压制动系统的排气作业?
【单选题】Over a period of time, if total assets increased by $26 000 and total liabilities increased by $6 000, then owner's equity would be increased by______.
A.
$32 000
B.
$25 000
C.
$7 000
D.
$20 000
【单选题】Profit and Loss Averson Corporation's income, total expenditure and advertising costs over an eight-month period of 2009. Which month's expenditure is the lowest?
A.
April
B.
May
C.
June
D.
July
【单选题】以下代码的运行结果为: public class Calc { public static void main (String args []) { int total = 0; for (int i = 0, j = 10; total > 30; ++i, --j) { System.out.println(" i = " + i + " : j = " + j); total += (i +...
A.
产生运行错误
B.
产生编译错误
C.
输出 "Total 0"
D.
产生如下输出 : i = 0 : j = 10 i = 1 : j = 9 i = 2 : j = 8 Total 30
【单选题】以下程序的编译运行结果为：public class ex2 { public static void main(String[] args) { int total = 0; for(int i = 0,j = 10;total > 30;++i,--j){ System.out.println("I = " + i + " ;j = " + j); total += (i+j); } Syste...
A.
产生运行错误
B.
产生编译错误
C.
输出 “Total: 0”
D.
输出如下结果： i = 0 ;j = 10 i = 1 ;j = 9 i = 2 ;j = 8 Total: 30
相关题目：
【单选题】Q3: {Which of the following is equivalent to this code segment? int total = 0; for (int i = 0; i <= 20; i +=2) total +=i; }
A.
{int total = 0; for (int i = 20; i total += i;}
B.
{int total = 0; for (int i = 0; i <= 20; total += i, i += 2);}< /div>
C.
{int total = 0; for (int i = 0, i <= 20, total += i; i += 2);}< /div>
D.
{int total = 0; for (int i = 2; i