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群组: 数学趣味、游戏、IQ等 群组: 数学建模 群组: 趣味数学 群组: Mathematica研究小组 群组: 我们的小窝 |
【1】求解: Q% \% A7 o# _6 S
设水库A、B、C分别向甲、乙、丙、丁四个小区供水量为x11、x12、x13、x14、x21、x22、x23、x24、x31、x32、x33、x34,则有:
8 n2 ~1 }$ V4 X! Lmax 290x11+320x12+230x13+280x14+310x21+320x22+260x23+300x24+260x31+250x32+220x337 R: p7 F& Y, N* [# X; L" F. e) S
st
$ N' a) D( B7 Jx34=0;5 }/ \" _2 d; |: y
x11+x12+x13+x14<=50;* D7 w( ]5 c" Z, x' a' Z
x21+x22+x23+x24<=60;& V! _7 _* k- F6 P8 H0 ]2 T
x31+x32+x33+x34<=50;
/ k3 d9 H4 `' G: ^4 G2 \6 ?x11+x21+x31>=30;
, T8 P% X3 O4 \. z# s+ wx11+x21+x31<=80;
0 Z% J" G9 J6 ?$ }x12+x22+x32>=70;
) k$ U' `4 ?/ U+ \* ex12+x22+x32<=140;
( k3 |! A: f: r5 Qx13+x23+x33>=10;
& z; \/ x% ?) j! s* Q, Ex13+x23+x33<=30;
2 l- C e7 d( f! Mx14+x24+x34>=10;' N5 |/ n) u% C) r
x14+x24+x34<=50;
/ D% X) o9 b g$ f6 {end5 b! ]$ m/ m6 l$ S* d' ?9 A _
LINGO程序:* Q# o" a- t, L: ~: z2 l
max=290*x11+320*x12+230*x13+280*x14+310*x21+320*x22+260*x23+300*x24+260*x31+250*x32+220*x33;! \% I5 ]$ m- Y) X4 e: s7 U! G X# g
x11+x12+x13+x14<=50;4 M: ~$ D: c4 y
x21+x22+x23+x24<=60;
% {2 e# f# b" x' c9 k" wx31+x32+x33+x34<=50;6 l* E1 h! p+ J) K
x11+x21+x31>=30;; G( F6 k( X. n, ]
x11+x21+x31<=80;
2 H: k2 g0 a5 U0 ^! V6 z {x12+x22+x32>=70;( }+ h) E4 A* X" k& f! Y
x12+x22+x32<=140;1 H4 A2 H M6 L( G/ o8 ~! b
x13+x23+x33>=10;
* S) v v! J% P" C* w5 F0 Vx13+x23+x33<=30;
! ]& [) R' }0 {0 G* kx14+x24+x34>=10;
/ b, Y/ X% N r3 [9 L* n# fx14+x24+x34<=50;
" E2 p, ]# X+ }9 e5 W8 Jend* e6 |# _6 _* H2 W, X
运行结果:. ?# l" D9 z' R1 S
Global optimal solution found.
9 H; }' B; i3 z& D Objective value: 47600.00
8 j @ @& F5 [3 D: R; v" h Total solver iterations: 73 T# K8 w3 g- p; b! v
; Z' B' i3 U4 |, G2 o; G
! w5 d- y* w# N$ qVariable Value Reduced Cost% f. I- g$ Y" z8 U
X11 0.000000 30.00000
: q' \0 c0 C; t0 e, iX12 50.00000 0.000000. a& b, w: _% Z4 V& B
X13 0.000000 50.00000
; B" b( M2 `+ E H$ C LX14 0.000000 20.00000
, q& K' z" N. V+ V0 g$ VX21 0.000000 10.00000
4 k9 a. ]: }4 T& s7 V0 P8 RX22 50.00000 0.000000/ W$ b. |! Y9 _4 Y& g
X23 0.000000 20.00000
; Q, E3 b3 R# HX24 10.00000 0.0000003 M5 B. h& h( ? b$ j! J' N
X31 40.00000 0.0000008 _2 w7 _* h' q7 I
X32 0.000000 10.00000
' R" z7 ]2 O% W" U* t9 ^; PX33 10.00000 0.000000+ z4 F. C3 L* s" r
X34 0.000000 240.0000' \( O8 A9 Q. L( t$ w9 X
0 X8 r9 V" I) h1 Y: o- a( O2 v6 }Row Slack or Surplus Dual Price
. Q$ `0 h' B! [# m8 ~/ P1 47600.00 1.0000000 V! Q& u: s. R" ?+ k
2 0.000000 320.0000! G4 \7 G" k( A, x* u
3 0.000000 320.0000
9 l! w: Z, @/ [4 0.000000 260.0000$ @4 U! ~0 g. N& D! K/ c
5 10.00000 0.000000
" [- X$ Q3 n& Q/ l$ ?( c8 y% S6 40.00000 0.000000
6 d% M' ]+ j/ f0 E; ^/ _2 t7 @ x7 30.00000 0.000000, [: p( t% J. u, O4 X9 C
8 40.00000 0.000000" V6 u# k! N: T6 A
9 0.000000 -40.00000
$ Y7 ]. u+ g9 x7 q9 e10 20.00000 0.000000
4 o' `) { T1 W7 t) r) B11 0.000000 -20.000004 p) `9 {5 s7 i$ G5 t
12 40.00000 0.000000
; `& w( Q* q# N9 {5 N3 }8 k$ Z+ r* V8 s6 L; n8 f/ K4 S: R
【2】求解:5 ?" I( ]( ?# ]& x) D
模型:; P& K) h( E) Y* L
max 290x11+320x12+230x13+280x14+310x21+320x22+260x23+300x24+260x31+250x32+220x336 a& a3 p' D8 P$ l& h
st
/ M4 U; E" q; ^x34=0;
! Y$ h: z. Q/ \4 D; Nx11+x12+x13+x14<=100;* o/ w2 t- k4 I. Q
x21+x22+x23+x24<=120;3 ~7 D- Z+ \0 `6 p
x31+x32+x33+x34<=100;4 `. E7 r% @0 y, H" _
x11+x21+x31>=30;8 @( q6 n+ O9 g$ I( R
x11+x21+x31<=80;
2 f: F3 b5 ?+ C: Z+ ax12+x22+x32>=70;$ y7 i1 M! t0 g
x12+x22+x32<=140;/ D9 s( b" M& C4 D0 X- s1 X
x13+x23+x33>=10;
2 }+ g( f+ n" X$ j/ V1 N; Nx13+x23+x33<=30;
% Y( K6 X8 T6 K) ^, Z' Ax14+x24+x34>=10;0 I2 o" w) j, b2 y6 F, `0 o4 I
x14+x24+x34<=50;7 z) K! K0 Q+ M# S: D% O
end
4 F- k5 _6 n/ g" j" ^9 \LINGO程序:3 B# r" K, t; P" c
max=290*x11+320*x12+230*x13+280*x14+310*x21+320*x22+260*x23+300*x24+260*x31+250*x32+220*x33;$ O8 J4 b$ u3 `! x/ g" F0 {
x11+x12+x13+x14<=100;
! A1 W3 \3 m- L5 V2 A5 {, ]x21+x22+x23+x24<=120; a5 L1 O: d, U0 j0 L
x31+x32+x33+x34<=100;
% E% @# c% j# W* ~4 x; xx11+x21+x31>=30;7 S; G, O6 q9 y( e9 B+ c
x11+x21+x31<=80;
6 i/ ]/ O+ Y1 n$ c5 J7 Vx12+x22+x32>=70;# w% U& F; a& f
x12+x22+x32<=140;
! N9 p% k1 A5 i5 _x13+x23+x33>=10;
1 @! y5 i% Y9 f3 ?& ^" E0 |x13+x23+x33<=30;
8 @# E( ^9 w p2 tx14+x24+x34>=10;; i3 E, g. a$ U. x, L
x14+x24+x34<=50;
* u6 ^. J- E' `; w! V3 c4 ~* [. A5 X; ?end
& M7 E- A5 Y# k& [7 t/ ]. G% o运行结果: 9 N; p4 Y3 S3 P# a+ V4 v
Global optimal solution found.! Z. b: H6 z2 c+ L. q6 f# |% J! J
Objective value: 88700.006 S J; F7 p& u/ h9 P# b+ G2 F
Total solver iterations: 7# I8 m7 y7 L/ Y0 v
0 I4 b* N. h6 Y% w( p, {: N. c6 A8 Q
Variable Value Reduced Cost* \# d+ n b9 q: `
X11 0.000000 20.00000& c5 y7 L( a, `9 R& ?1 b* J: V7 l
X12 100.0000 0.000000" p/ f" Y2 Y* l9 ~- U! b
X13 0.000000 40.00000
* C& q/ T) e. m* ~5 i8 nX14 0.000000 20.00000
8 s) F4 a) l# j {" Z6 `% fX21 30.00000 0.000000! c9 |2 ~) o" L" I
X22 40.00000 0.000000
/ n9 B- H$ c: L0 `2 j1 d! p+ YX23 0.000000 10.00000
8 ?; K5 g9 v% S# u: w) eX24 50.00000 0.000000; M' O7 ~7 j( H# |
X31 50.00000 0.0000002 I4 [4 j% G4 T# h) H
X32 0.000000 20.000007 N$ Y5 V2 p7 Y% B. Q! }
X33 30.00000 0.000000& r2 I0 i6 c3 b5 m: C+ m
X34 0.000000 250.0000, M1 {. `( y& W b" Y% u/ G
$ `1 c# T& q- q1 d2 F
Row Slack or Surplus Dual Price# ^. K; x9 z% u) O, ~" W
1 88700.00 1.000000
9 F# e9 k# v* e2 S" l2 0.000000 50.00000+ s* N1 A/ Q+ V, ]% w/ N3 q1 f
3 0.000000 50.00000
: u1 b3 }+ E2 V1 a& f& H+ C9 [4 20.00000 0.000000
- Z! U8 V! @" G5 a0 _; y6 }5 50.00000 0.000000
# C( i p" y* ^4 b& N; T' N S3 e7 ]/ P6 0.000000 260.0000
* p/ }2 e# P# u" g* N4 q- Y0 z7 70.00000 0.000000
: Y/ l# e- s2 N: m8 0.000000 270.00000 w# c) f+ T% ]0 |1 Y: ~- l
9 20.00000 0.0000007 z, `* C) U* x/ w) \ x
10 0.000000 220.00005 ]+ x: Y. @6 E8 I5 d! E
11 40.00000 0.000000' H0 [. m7 a2 E& F
12 0.000000 250.0000 |
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