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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:
1 [4 ~; z2 x/ |' ^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:
2 A6 g6 j% Z' [max 290x11+320x12+230x13+280x14+310x21+320x22+260x23+300x24+260x31+250x32+220x33
7 x2 H' f ~$ ~ B' H* r; gst
$ b7 U" T; g7 a% |3 D; Xx34=0;+ B; T/ F/ d7 I
x11+x12+x13+x14<=50;
& l/ X6 i+ V! ]) p3 z5 I P- tx21+x22+x23+x24<=60;5 `, J1 e$ [# d/ q9 h
x31+x32+x33+x34<=50;0 b5 R4 k! R# j* r
x11+x21+x31>=30;9 \8 G5 O1 _4 X: ~0 m- B- S
x11+x21+x31<=80;/ {2 y% r% p8 h/ A! {# _
x12+x22+x32>=70;2 O9 x0 `$ m2 C; ]9 Q! @
x12+x22+x32<=140;
$ F [, v' a' n1 C% tx13+x23+x33>=10;% b' F+ H1 o4 C) r+ k
x13+x23+x33<=30;" P& i* B: O1 \* M. I
x14+x24+x34>=10;
" Y- N; _7 }( z7 z7 E+ B$ Lx14+x24+x34<=50;; t* E6 Z. M0 p9 U# o& [% ^
end: B; R, e+ m& f( }% b
LINGO程序:; Q2 j6 l1 D5 H; I8 L3 j
max=290*x11+320*x12+230*x13+280*x14+310*x21+320*x22+260*x23+300*x24+260*x31+250*x32+220*x33;
% E. h: y* ?- M, W, s0 Yx11+x12+x13+x14<=50;9 K. M& @& J+ h
x21+x22+x23+x24<=60;9 _4 o; C8 W" ~3 e! d1 e1 F
x31+x32+x33+x34<=50;9 r6 N3 m# l' B- y; B+ f
x11+x21+x31>=30;5 X% k7 I5 o, [# A
x11+x21+x31<=80;( z: L: n. C$ ^
x12+x22+x32>=70;
/ G$ C3 B1 }. r/ L6 J& d7 Ux12+x22+x32<=140;
" t/ v: w% Q5 ax13+x23+x33>=10;& d: `4 ^# ^4 X2 F5 F
x13+x23+x33<=30;! t$ q; m6 x) m7 o
x14+x24+x34>=10;
) u3 R' a( Z( l: {* vx14+x24+x34<=50;! U! S/ c' l/ E8 X
end
! B/ N ^8 W9 q运行结果:- m5 X2 J2 H& D8 H' o
Global optimal solution found.. l& C8 q8 Z! a& U3 P4 M
Objective value: 47600.00/ A& e" A% j& ]6 y$ \
Total solver iterations: 7 R8 R9 ?1 f* k% b4 |; F9 v3 J5 U1 d3 i
5 Y% W) Z# R+ r! x" F7 m
; b) C% ~; X- rVariable Value Reduced Cost% o& n. T% _! j9 O, Q' O9 O- ^( l
X11 0.000000 30.00000$ O! \( k0 \% J z( g7 K
X12 50.00000 0.0000005 L% c- a! ^( F& `* U& M, [
X13 0.000000 50.00000( U; _, Z' D! s$ `
X14 0.000000 20.00000. H7 e$ I0 }7 q8 h0 I5 i8 j
X21 0.000000 10.00000
% x) O9 H3 o* b4 r% |! Y% yX22 50.00000 0.000000
: u$ c5 ?2 d9 s! P# v4 oX23 0.000000 20.00000
' ]" A/ ~" p1 s/ h/ `, b* O" d* oX24 10.00000 0.0000009 N6 k" `, P$ O. T* W' l, P
X31 40.00000 0.000000' P, X8 a' B, m9 _$ ^8 U7 s5 I6 _
X32 0.000000 10.00000
- `+ u5 |( h x1 m: H, Z( DX33 10.00000 0.000000' e( s# e/ S( w/ f: |
X34 0.000000 240.0000% i; O7 T! F0 r' i, U
0 [2 T9 F; _6 z9 ~' ORow Slack or Surplus Dual Price
6 T& z4 H w1 t- y7 H+ o1 47600.00 1.000000
8 `( Y4 A' `9 h7 k5 ?2 0.000000 320.0000
! K( d& i* p+ e0 {5 h* b4 l; C3 0.000000 320.0000
# w6 ^# Y( p5 p4 T4 l& ]% r4 0.000000 260.00002 H: N' B7 e$ Z
5 10.00000 0.000000
# R, O7 R" |% K% w+ b6 40.00000 0.000000
8 a- m- u$ N8 ~3 F7 30.00000 0.000000
% Q& v0 s7 z/ j a1 s; [4 u8 40.00000 0.000000/ N( D5 `- \. G" o" f0 X& L; f2 `
9 0.000000 -40.00000
4 h8 a# C) y$ l" f$ r, \: o10 20.00000 0.000000' i' s2 U8 H$ R+ _! p9 m) X, g
11 0.000000 -20.00000! V% `4 Z+ X! d% J# O! y+ g
12 40.00000 0.000000
) o, W/ Q1 W( F7 G( j
n$ b& _4 ?/ `+ R2 S$ t7 s【2】求解:( P7 [; d/ G( d4 u; k* V1 V' d
模型:# }2 V9 K7 ~1 \- `3 f- l- W' L
max 290x11+320x12+230x13+280x14+310x21+320x22+260x23+300x24+260x31+250x32+220x33* N( a' Z! i( n& U N
st
. U X, y. v( P+ }* @2 ?! ex34=0;+ p1 U: Z7 t9 s8 l, c
x11+x12+x13+x14<=100;5 a, c* z' O$ F H9 M2 l$ R$ A$ z4 i7 R9 s
x21+x22+x23+x24<=120;& N; [6 f8 x1 v8 K9 ~( g
x31+x32+x33+x34<=100;
; P9 k; r; Y! P0 j! q6 c: {. B4 T' bx11+x21+x31>=30;
2 T7 r" S- o, D( dx11+x21+x31<=80;
/ X! q: D; t# I4 ax12+x22+x32>=70;
4 m D" _9 f j, |; ]9 U% H( Zx12+x22+x32<=140;& X( n! x, s, W, h+ i, x2 b
x13+x23+x33>=10;
~0 T$ j! i9 Kx13+x23+x33<=30;2 H% }5 W: t4 M8 n C
x14+x24+x34>=10;. z, W# D7 v$ x0 K
x14+x24+x34<=50;8 R$ F6 ?/ H1 {4 B" K1 \
end1 _: v5 ~1 j: Y- y
LINGO程序:$ m. z0 b2 P8 Q# f
max=290*x11+320*x12+230*x13+280*x14+310*x21+320*x22+260*x23+300*x24+260*x31+250*x32+220*x33;
8 W+ ~/ L; ?7 V' e. b' Rx11+x12+x13+x14<=100;
6 O' A8 b( j, Ax21+x22+x23+x24<=120;1 p1 N' C/ m( o5 r
x31+x32+x33+x34<=100;
8 e6 U- i& q* T1 a8 dx11+x21+x31>=30;
( I8 |& w; k, L! @# }x11+x21+x31<=80;
0 l9 s h. \6 P% A5 ~x12+x22+x32>=70;- K2 R, L# K- s: N3 Q" t9 n! d
x12+x22+x32<=140;
t, `& [$ h# M3 Px13+x23+x33>=10;
. C* E& M) k3 w, h8 vx13+x23+x33<=30;
+ Z( T1 k0 ]# m. y, Z/ o0 B& a& e" ]x14+x24+x34>=10;4 ~) }, E2 b) Z, d( \: V
x14+x24+x34<=50;" ]. i- J* j" T9 O" v& a+ q8 {) m) F
end
0 J# q5 x; \. Z运行结果:
/ ?! H% x5 E$ y+ |* \% M: M Global optimal solution found.
2 {& L8 A* z# b$ N+ G6 o Objective value: 88700.00; |- B& ]! `$ _* y% k+ r6 j/ |
Total solver iterations: 7
i* `4 Q) H6 e) ~) ~2 i% d
# a0 Y5 Q- u: A
0 t2 T) y$ o) y9 j- f$ eVariable Value Reduced Cost
0 x3 [% l: h# m8 D' c; u- C0 eX11 0.000000 20.00000
8 S+ K C8 R8 H, d# |+ m$ SX12 100.0000 0.000000
" G, ~- U6 Z. O4 G, `! T0 DX13 0.000000 40.00000; ~% h# B9 D2 U: h1 _" R
X14 0.000000 20.00000
2 B3 a q1 O _0 s/ g6 X xX21 30.00000 0.000000+ H" U3 o o f. d. d
X22 40.00000 0.0000006 H/ X* g6 l3 ?& H
X23 0.000000 10.00000
! L9 \, m% r- g( Y7 n1 r) x! D1 Q) U, y+ qX24 50.00000 0.000000( X$ p! z& W8 A7 \: ^
X31 50.00000 0.000000
) S+ {1 k& |( n, GX32 0.000000 20.00000
* V3 S; N% p, @. S [X33 30.00000 0.000000& P6 L- j/ q2 k4 q
X34 0.000000 250.0000% w4 n! q2 S: h, C# G" v. }
2 e7 C: d: A) E3 Y0 L5 L) i BRow Slack or Surplus Dual Price# T, _/ D9 S2 |( u q
1 88700.00 1.000000
! Z. c. \, t1 n7 G, n7 t2 0.000000 50.00000# G, J5 I8 j( [6 u
3 0.000000 50.00000
9 h& M$ H7 |* A4 d6 b. a4 20.00000 0.000000
4 I, O% t5 N0 M) C8 T+ W5 50.00000 0.0000007 E( X+ ?- f8 S% D# S" u7 T
6 0.000000 260.0000
9 K5 H! h; n: }' {7 70.00000 0.000000
' G/ F/ @0 E' P, [% j' M8 0.000000 270.0000
$ [9 n2 D$ D$ Y% c; `2 T" D) e) G9 20.00000 0.000000) U% v; A6 v" y* |$ [1 e
10 0.000000 220.0000: U- ?9 w ] `9 I
11 40.00000 0.000000. ~5 ~3 }4 C) b# w3 W1 Z% S: a
12 0.000000 250.0000 |
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