数学建模社区-数学中国
标题:
lingo建模语言与实例4
[打印本页]
作者:
longde
时间:
2015-7-22 15:24
标题:
lingo建模语言与实例4
目标与约束段
% S3 y# `/ e c$ ~
集合段（SETS ENDSETS）
' O0 a& ^- z9 n+ i- I$ z: x \$ E
数据段（DATA ENDDATA）
& h! _" `- I* S* R3 ` w/ p( ]
初始段（INIT ENDINIT）
) e: U( L: W& B) a$ v6 g
（计算段 (CALC ENDCALC)）
9 p0 Z3 s; k. L; ?( w6 x- b* r
MODEL:
' b) E3 e, K. I$ D
Title Location Problem;
) O$ i# }4 V8 q& Z; K% a
sets:
2 y* e' i3 J0 @2 |% X: L% Z
demand/1..6/:a,b,d;
4 r' f; R1 o: m l
supply/1..2/:x,y,e;
. {4 G$ O: |; s
link(demand,supply):c;
5 h9 B' C9 d* x4 V
endsets
) E; o! k1 R, ]. d
data:
& p2 P9 e5 @( y5 L/ C+ @
a=1.25,8.75,0.5,5.75,3,7.25;
$ y0 S& e8 x: c( p
b=1.25,0.75,4.75,5,6.5,7.75;
7 L4 x0 Y6 h9 D/ t8 ~8 [8 s
d=3,5,4,7,6,11; e=20,20;
* w B- t, C& D# L$ I5 P+ V7 D
enddata
' i& H! C' A1 T" m
init:
( s* w2 }. U" c, ]/ d$ }7 w
x,y=5,1,2,7;
0 ?' [ T. {5 i; i
endinit
# ^1 p0 L, V! h5 ~* Z
min=@sum(link(i,j):c(i,j)*((x(j)-a(i))^2+(y(j)-b(i))^2)^(1/2));
5 t: J7 |5 h% W) a2 @4 e0 x
@for(demand(i)
sum(supply(j):c(i,j))=d(i););
& M. H$ X" U" g2 V
@for(supply(i)
sum(demand(j):c(j,i))<=e(i););
( u( ~3 e, j; p- e
END
6 v8 u& E: ^' F U6 _# V, V% w
9 d3 y, p$ Z" t5 |% [4 T6 s
欢迎光临 数学建模社区-数学中国 (http://www.madio.net/)
Powered by Discuz! X2.5
sum(supply(j):c(i,j))=d(i);); sum(demand(j):c(j,i))<=e(i););( u( ~3 e, j; p- e