为什么LINGO的精度偏差大
min=(y*b-x*a)^2+y^2*c^2+(b+(1-z)*(a-b)-x*a)^2+z^2*c^2+(b+(1-z)*(a-b)-y*b)^2+(z*c-y*c)^2;a=16;b=14;c=12;
LINGO/WIN64 21.0.33 (29 May 2024), LINDO API 15.0.6099.171
Licensee info: Eval Use Only
License expires: 6 APR 2025
Global optimal solution found.
Objective value: 148.6452
Infeasibilities: 0.000000
Total solver iterations: 5
Elapsed runtime seconds: 0.92
Model is convex quadratic
Model Class: QP
Total variables: 3
Nonlinear variables: 3
Integer variables: 0
Total constraints: 1
Nonlinear constraints: 1
Total nonzeros: 3
Nonlinear nonzeros: 6
Variable Value Reduced Cost
Y 0.6451613 0.2550979E-07
B 14.00000 0.000000
X 0.7580645 -0.6827543E-07
A 16.00000 0.000000
C 12.00000 0.000000
Z 0.3870968 0.1606168E-08
Row Slack or Surplus Dual Price
1 148.6452 -1.000000
2 0.000000 -11.38837
3 0.000000 4.794851
4 0.000000 -15.18434
页:
[1]