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发表于 2010-1-6 10:42:01
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来自 湖南湘潭
综合楼上思路编写下面程序,但得不到精确的解,程序及最好结果如下,请楼主指教
Parameter x(18)=[1,18,0];
Exclusive = True;
ConstStr k1 = if( x3 <=9, 1, 2);
ConstStr k2 = if( x6 <=9, 1, 2);
ConstStr k3 = if( x9 <=9, 1, 2);
ConstStr k4 = if( x12<=9, 1, 2);
ConstStr k5 = if( x15<=9, 1, 2);
ConstStr k6 = if( x18<=9, 1, 2);
MinFunction
sqr(x1/(x2*10^k1+x3)+x4/(x5*10^k2+x6)+x7/(x8*10^k3+x9)-1)+sqr(x10/(x11*10^k4+x12)+x13/(x14*10^k5+x15)-x16/(x17*10^k6+x18)-0.5);
结果及其验证
x1 = 16
x2 = 8
x3 = 4
x4 = 14
x5 = 2
x6 = 1
x7 = 15
x8 = 10
x9 = 5
x10 = 17
x11 = 3
x12 = 9
x13 = 13
x14 = 18
x15 = 6
x16 = 7
x17 = 12
x18 = 11
k1 = IIf(x3 <= 9, 1, 2)
k1 = 1
k2 = IIf(x6 <= 9, 1, 2)
k2 = 1
k3 = IIf(x9 <= 9, 1, 2)
k3 = 1
k4 = IIf(x12 <= 9, 1, 2)
k4 = 1
k5 = IIf(x15 <= 9, 1, 2)
k5 = 1
k6 = IIf(x18 <= 9, 1, 2)
k6 = 2
x1 / (x2 * 10 ^ k1 + x3) + x4 / (x5 * 10 ^ k2 + x6) + x7 / (x8 * 10 ^ k3 + x9)
Ans = 1
x10 / (x11 * 10 ^ k4 + x12) + x13 / (x14 * 10 ^ k5 + x15) - x16 / (x17 * 10 ^ k6 + x18)
Ans = 0.50001 |
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