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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:
- V, E3 x8 Q: n9 g y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:) K; I. I( M. n, A# h% O# F1 @
max 290x11+320x12+230x13+280x14+310x21+320x22+260x23+300x24+260x31+250x32+220x33$ k/ d; x5 t' w! V- k5 D
st
2 u5 T4 ~7 e. r: o$ sx34=0;) `( j5 x" u$ I. Z9 L( l6 E
x11+x12+x13+x14<=50;
$ K% f/ p1 ^$ t" X: _& A) d- Px21+x22+x23+x24<=60;
q5 ] z* d4 `3 Cx31+x32+x33+x34<=50;2 R* ~5 g6 ^" Q5 ?
x11+x21+x31>=30;* M- p3 a# T8 D' G6 V7 B
x11+x21+x31<=80;
7 h2 o/ _* R9 Q: Z. H6 Wx12+x22+x32>=70;% d: P$ ~$ F# x; \/ I: C. A
x12+x22+x32<=140;
7 |* p& g, g1 kx13+x23+x33>=10;9 X; B$ N: a3 f8 r7 s: {& E
x13+x23+x33<=30;& C- k# o6 C$ S- X1 t1 J
x14+x24+x34>=10;
+ P; R5 l1 m4 ] m& ]* ]4 _x14+x24+x34<=50;
2 ~! b5 @& `8 h* i% Z9 a! P1 y3 oend
, o% F' i& U4 g3 n- GLINGO程序:# K' p) g. e4 \
max=290*x11+320*x12+230*x13+280*x14+310*x21+320*x22+260*x23+300*x24+260*x31+250*x32+220*x33;
, G& z- C5 C, p6 Gx11+x12+x13+x14<=50;
( [9 Q3 Y0 Z; e* J8 mx21+x22+x23+x24<=60;* v; B5 D, c: b7 X
x31+x32+x33+x34<=50;
) w( \% |6 e( ]x11+x21+x31>=30;
5 \& p; r/ K/ C% k; s. z7 O2 \0 g$ [x11+x21+x31<=80;5 X% L+ Q0 e+ s: @
x12+x22+x32>=70;! g1 L$ B7 l9 r9 R9 \; T
x12+x22+x32<=140;. |% b6 k) l# C$ [3 Z* F0 P" N
x13+x23+x33>=10;
4 K* @& W+ A" y! Jx13+x23+x33<=30;
* k' s/ R6 C ]0 O3 ox14+x24+x34>=10;
2 C8 ^9 R/ ?0 I* rx14+x24+x34<=50;, k l. _" t8 S6 h4 \0 G' N
end, w; A ^2 S, ]; @% [/ F3 ]
运行结果:; Y& B2 O+ A# }9 I1 g
Global optimal solution found.
- ]. x4 e t, B( X1 Q+ p Objective value: 47600.00
2 r! d% e2 e0 P0 t8 }' g7 G# N8 _; F% G Total solver iterations: 7/ ^/ M" {! p( m {( [
6 T2 t! ]; ]3 }" j* J/ Y5 s/ y* m& h) F
Variable Value Reduced Cost' p; O7 X% C9 }5 S$ h
X11 0.000000 30.00000& f- l. u, ?2 u7 p8 @5 u+ a. `& k
X12 50.00000 0.000000$ ~1 K8 K% f/ e( y* `) K
X13 0.000000 50.00000& W6 @/ u1 i' V; ]- _# @8 a0 F
X14 0.000000 20.00000# d% h5 W* @: J, r
X21 0.000000 10.00000
/ s+ n8 m( r1 r# \5 PX22 50.00000 0.0000008 T1 p' G0 M a* b
X23 0.000000 20.00000( h; ^% W; X! P/ q, j% B: m7 ~: P
X24 10.00000 0.000000" @; L1 h) F/ }# X6 V9 i* C8 K8 Q/ P* t
X31 40.00000 0.000000
; t7 z+ w- `" r# EX32 0.000000 10.000003 `4 t. b; a5 n9 s" H* I" t
X33 10.00000 0.000000 q+ l% Q f# }
X34 0.000000 240.0000% t9 M( Z$ s! v' ?8 c9 t
2 ]# }/ K/ q0 {" n* c" NRow Slack or Surplus Dual Price
6 C# v( j2 g6 k2 K2 m1 47600.00 1.0000003 _) s7 ?0 m2 s( f6 d) U9 C
2 0.000000 320.0000
. ]4 _9 N9 [1 \! b3 0.000000 320.0000/ x- w/ m) A& v" ]
4 0.000000 260.00008 H5 B1 B6 Q, I& C
5 10.00000 0.000000
9 O( C: I9 E5 i) n6 40.00000 0.000000
& I$ d: M% k4 a- S7 30.00000 0.0000005 X- R! @7 H* _* W! |) j
8 40.00000 0.0000000 B$ Z- u$ c) m/ N
9 0.000000 -40.00000
. A) N5 R9 ?" E& `10 20.00000 0.000000. b. K X8 ^7 \/ m8 M
11 0.000000 -20.00000: }* v1 Y" S; h! S# c0 o3 E' P
12 40.00000 0.000000
5 H: w) X8 e7 k- Z) O* a
' m- d0 ~" Q7 G) s% t D! m' u【2】求解:
% _( \( ~/ F6 F& {' P. W* ~模型:
6 D% i" W% L# w" q: imax 290x11+320x12+230x13+280x14+310x21+320x22+260x23+300x24+260x31+250x32+220x33
9 D+ h3 t) d% Y' g3 Tst
7 y, j6 K I0 T$ O- U4 X* gx34=0;$ n) O. t8 e- g2 m& W
x11+x12+x13+x14<=100;
I* n# j7 I; _9 v* r: [3 u7 {+ zx21+x22+x23+x24<=120;) b/ \$ ]4 I, J' v$ }6 K& Z d
x31+x32+x33+x34<=100;! Z$ C8 [! }6 e6 T3 P' a; b
x11+x21+x31>=30;
" k" R2 x5 g$ Z2 Z4 ]2 @x11+x21+x31<=80;
. D+ O* D9 b" ^# [& Nx12+x22+x32>=70;
6 E" f& |5 I; X: Sx12+x22+x32<=140;4 Y% ^" ?* @+ ?5 o- ?* n
x13+x23+x33>=10;
& ~/ l. a6 a, b2 u! B& L7 p! C0 mx13+x23+x33<=30;
% |2 m# c) \( j/ Xx14+x24+x34>=10;
3 p/ h( `, k% Y; x6 h# nx14+x24+x34<=50;
( J; o& T# q4 F' [" M6 V8 z3 pend
' u; V; H9 x# ~+ n/ _LINGO程序:! ]( K3 L9 ~9 r, X0 O
max=290*x11+320*x12+230*x13+280*x14+310*x21+320*x22+260*x23+300*x24+260*x31+250*x32+220*x33;
; ^8 H7 J: R& h* d% Gx11+x12+x13+x14<=100;
7 A8 B1 s5 ~* l8 ]x21+x22+x23+x24<=120;
* m, y R5 G2 r9 I Px31+x32+x33+x34<=100;
5 A l$ \$ ]7 c: Z6 ]x11+x21+x31>=30;
# H) L9 O; P$ M% s9 ]$ Hx11+x21+x31<=80;
1 m& F* S* _( ^7 D( R3 O0 \x12+x22+x32>=70;" ~* A3 ^7 v8 J3 i4 J, v$ ?6 o9 S$ U
x12+x22+x32<=140;
( B( @6 Y( E5 w% j) R- lx13+x23+x33>=10;
6 \/ j# T6 H4 r: L, P; o$ kx13+x23+x33<=30;6 A' ?. ]: U; Y5 x- Z
x14+x24+x34>=10;6 Q- f7 G: d2 W
x14+x24+x34<=50;
+ ]" ~$ R: ~- W( ?3 ?end4 ]( f! Z+ K$ o# F: a$ b- u0 x0 ~
运行结果:
/ H$ Y& R$ `7 D- s# J Global optimal solution found.* t; i2 y0 O' [7 B, g* e' k/ Q
Objective value: 88700.00" H8 s, d; W* V8 l8 {3 p6 T+ H
Total solver iterations: 7- x* @* X. N: x
4 T! o( @0 g3 r5 E7 F5 @) P
' e: U4 p5 M- {4 i) b) MVariable Value Reduced Cost
" e J# N. e8 u! |5 H8 v1 XX11 0.000000 20.00000; P" l# U/ B9 e+ L
X12 100.0000 0.000000
" b. z. G. X+ UX13 0.000000 40.000003 j( z; ~3 X% k: W2 i, e( v2 a1 \
X14 0.000000 20.00000
, k$ T! V, J$ @X21 30.00000 0.000000
# s8 t( }/ i A# d( l9 ~+ t, w3 wX22 40.00000 0.000000, U3 u4 m. A/ L; y1 X
X23 0.000000 10.00000) K5 A6 l: O4 R1 F8 a) \
X24 50.00000 0.000000: ?: k9 s2 k' k% g" H& B( ?
X31 50.00000 0.0000007 L- u! T, G6 P8 N& |' }4 L8 D
X32 0.000000 20.00000
" O3 x# u- \5 r7 t. q) gX33 30.00000 0.000000
* |5 n8 U2 Y( I$ [9 f3 KX34 0.000000 250.00007 E' o+ {. [8 e" ]/ i d% `
: n/ K( o! i5 }0 l/ V
Row Slack or Surplus Dual Price
5 i" {& w2 Y+ J. a& O3 e1 88700.00 1.000000
S% V" O* t0 B% x2 l$ m2 0.000000 50.00000$ E+ M3 L5 G) q. s$ {& a. t
3 0.000000 50.00000% j# L5 k" C% B" r( H1 @5 L
4 20.00000 0.000000/ [2 Z8 I. H+ B G+ x X& o/ C3 c
5 50.00000 0.000000
5 @- i% ]) }. F% f4 d9 z6 0.000000 260.0000
: m% h. z) @* w+ A, Q+ ~* ~7 70.00000 0.000000; y% Y) [& g) @3 a, e$ ] A" o9 S
8 0.000000 270.0000
# \3 d# C- X0 O' ]$ G3 L, E9 20.00000 0.000000
" [2 P6 ?- Z" J% B10 0.000000 220.00009 I: u" |7 G0 W% l i
11 40.00000 0.0000002 i: g1 p/ n4 \
12 0.000000 250.0000 |
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