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
) u/ j7 z7 F" }+ V, a8 o8 l2 h集合段(SETS    ENDSETS)
5 M( H) S( [/ h  i数据段(DATA   ENDDATA)
+ |8 x4 p$ p& @* w初始段(INIT  ENDINIT)$ g0 }% v8 k, V
(计算段 (CALC ENDCALC))
+ C- v+ Q6 ~- i/ F7 v( M# DMODEL:
; T9 {' o8 Z* p/ D6 @- WTitle Location Problem;
9 n. f7 g. j* |; Lsets:
! s7 y# l7 F  [3 S  [) b" L3 q    demand/1..6/:a,b,d;
' ~! w0 m) F- V/ W    supply/1..2/:x,y,e;- ~) E& N0 k, E8 h, e
    link(demand,supply):c;2 S4 z. q# E1 [4 k. X/ U: F; R
endsets4 d: f: Z. p& D8 N" e. Z* X
data:
3 [( E# U4 V6 e1 O: e/ h$ _a=1.25,8.75,0.5,5.75,3,7.25;
4 G$ Y1 y6 R" S4 J5 e6 `b=1.25,0.75,4.75,5,6.5,7.75; 9 {/ T7 q, W2 e- W
d=3,5,4,7,6,11; e=20,20;
3 `0 s4 f% t9 {; Nenddata# J/ s. n; ]0 c+ O
init:
& @9 Q% ?2 I- ]. {. h' P* z9 w# e# l# Lx,y=5,1,2,7;
& ^$ l  ?$ v' {endinit
3 z# n7 I; T1 Q& ^6 s6 u% zmin=@sum(link(i,j):c(i,j)*((x(j)-a(i))^2+(y(j)-b(i))^2)^(1/2));+ ?& b7 e3 \% ^' @7 }* J
@for(demand(i)sum(supply(j):c(i,j))=d(i);); 2 E6 o7 P! _- P2 n+ k' k' H
@for(supply(i)sum(demand(j):c(j,i))<=e(i););  j" A' i4 ~2 x& ~( O7 t
END
$ n8 O7 X% W. B, E4 F# `; t0 g  D" U0 M7 k4 {





欢迎光临 数学建模社区-数学中国 (http://www.madio.net/) Powered by Discuz! X2.5