Min pairwise distance ratio (Xpress)

Author: glebbelov

README.md

@@ -100,6 +100,7 @@ The first two notebook cells are modified to ensure that requirements are instal
 |Logistic Regression with amplpy|[![logistic_regression.ipynb](https://img.shields.io/badge/github-%23121011.svg?logo=github)](https://github.com/ampl/colab.ampl.com/blob/master/authors/glebbelov/conic/logistic_regression.ipynb)|[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ampl/colab.ampl.com/blob/master/authors/glebbelov/conic/logistic_regression.ipynb)|[![Open In Deepnote](https://deepnote.com/buttons/launch-in-deepnote-small.svg)](https://deepnote.com/launch?url=https://github.com/ampl/colab.ampl.com/blob/master/authors/glebbelov/conic/logistic_regression.ipynb)|[![Open In Kaggle](https://kaggle.com/static/images/open-in-kaggle.svg)](https://kaggle.com/kernels/welcome?src=https://github.com/ampl/colab.ampl.com/blob/master/authors/glebbelov/conic/logistic_regression.ipynb)|[![Open In Gradient](https://assets.paperspace.io/img/gradient-badge.svg)](https://console.paperspace.com/github/ampl/colab.ampl.com/blob/master/authors/glebbelov/conic/logistic_regression.ipynb)|[![Open In SageMaker Studio Lab](https://studiolab.sagemaker.aws/studiolab.svg)](https://studiolab.sagemaker.aws/import/github/ampl/colab.ampl.com/blob/master/authors/glebbelov/conic/logistic_regression.ipynb)|
 |Magic sequences|[![magic_sequences.ipynb](https://img.shields.io/badge/github-%23121011.svg?logo=github)](https://github.com/ampl/colab.ampl.com/blob/master/authors/marcos-dv/puzzles/magic_sequences.ipynb)|[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ampl/colab.ampl.com/blob/master/authors/marcos-dv/puzzles/magic_sequences.ipynb)|[![Open In Deepnote](https://deepnote.com/buttons/launch-in-deepnote-small.svg)](https://deepnote.com/launch?url=https://github.com/ampl/colab.ampl.com/blob/master/authors/marcos-dv/puzzles/magic_sequences.ipynb)|[![Open In Kaggle](https://kaggle.com/static/images/open-in-kaggle.svg)](https://kaggle.com/kernels/welcome?src=https://github.com/ampl/colab.ampl.com/blob/master/authors/marcos-dv/puzzles/magic_sequences.ipynb)|[![Open In Gradient](https://assets.paperspace.io/img/gradient-badge.svg)](https://console.paperspace.com/github/ampl/colab.ampl.com/blob/master/authors/marcos-dv/puzzles/magic_sequences.ipynb)|[![Open In SageMaker Studio Lab](https://studiolab.sagemaker.aws/studiolab.svg)](https://studiolab.sagemaker.aws/import/github/ampl/colab.ampl.com/blob/master/authors/marcos-dv/puzzles/magic_sequences.ipynb)|
 |MineLib in AMPL and amplpy|[![MineLib_AMPL.ipynb](https://img.shields.io/badge/github-%23121011.svg?logo=github)](https://github.com/ampl/colab.ampl.com/blob/master/authors/eduardosalaz/minelib/MineLib_AMPL.ipynb)|[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ampl/colab.ampl.com/blob/master/authors/eduardosalaz/minelib/MineLib_AMPL.ipynb)|[![Open In Deepnote](https://deepnote.com/buttons/launch-in-deepnote-small.svg)](https://deepnote.com/launch?url=https://github.com/ampl/colab.ampl.com/blob/master/authors/eduardosalaz/minelib/MineLib_AMPL.ipynb)|[![Open In Kaggle](https://kaggle.com/static/images/open-in-kaggle.svg)](https://kaggle.com/kernels/welcome?src=https://github.com/ampl/colab.ampl.com/blob/master/authors/eduardosalaz/minelib/MineLib_AMPL.ipynb)|[![Open In Gradient](https://assets.paperspace.io/img/gradient-badge.svg)](https://console.paperspace.com/github/ampl/colab.ampl.com/blob/master/authors/eduardosalaz/minelib/MineLib_AMPL.ipynb)|[![Open In SageMaker Studio Lab](https://studiolab.sagemaker.aws/studiolab.svg)](https://studiolab.sagemaker.aws/import/github/ampl/colab.ampl.com/blob/master/authors/eduardosalaz/minelib/MineLib_AMPL.ipynb)|
+|Minimize the Pairwise Distance Ratio for N Points|[![min_pairw_dist_ratio.ipynb](https://img.shields.io/badge/github-%23121011.svg?logo=github)](https://github.com/ampl/colab.ampl.com/blob/master/authors/glebbelov/nonlinear/min_pairwise_distance_ratio/min_pairw_dist_ratio.ipynb)|[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ampl/colab.ampl.com/blob/master/authors/glebbelov/nonlinear/min_pairwise_distance_ratio/min_pairw_dist_ratio.ipynb)|[![Open In Deepnote](https://deepnote.com/buttons/launch-in-deepnote-small.svg)](https://deepnote.com/launch?url=https://github.com/ampl/colab.ampl.com/blob/master/authors/glebbelov/nonlinear/min_pairwise_distance_ratio/min_pairw_dist_ratio.ipynb)|[![Open In Kaggle](https://kaggle.com/static/images/open-in-kaggle.svg)](https://kaggle.com/kernels/welcome?src=https://github.com/ampl/colab.ampl.com/blob/master/authors/glebbelov/nonlinear/min_pairwise_distance_ratio/min_pairw_dist_ratio.ipynb)|[![Open In Gradient](https://assets.paperspace.io/img/gradient-badge.svg)](https://console.paperspace.com/github/ampl/colab.ampl.com/blob/master/authors/glebbelov/nonlinear/min_pairwise_distance_ratio/min_pairw_dist_ratio.ipynb)|[![Open In SageMaker Studio Lab](https://studiolab.sagemaker.aws/studiolab.svg)](https://studiolab.sagemaker.aws/import/github/ampl/colab.ampl.com/blob/master/authors/glebbelov/nonlinear/min_pairwise_distance_ratio/min_pairw_dist_ratio.ipynb)|
 |Multi-Objective Knapsack Problem with AMPLPY|[![knapsack.ipynb](https://img.shields.io/badge/github-%23121011.svg?logo=github)](https://github.com/ampl/colab.ampl.com/blob/master/authors/lentz/multiobj/knapsack.ipynb)|[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ampl/colab.ampl.com/blob/master/authors/lentz/multiobj/knapsack.ipynb)|[![Open In Deepnote](https://deepnote.com/buttons/launch-in-deepnote-small.svg)](https://deepnote.com/launch?url=https://github.com/ampl/colab.ampl.com/blob/master/authors/lentz/multiobj/knapsack.ipynb)|[![Open In Kaggle](https://kaggle.com/static/images/open-in-kaggle.svg)](https://kaggle.com/kernels/welcome?src=https://github.com/ampl/colab.ampl.com/blob/master/authors/lentz/multiobj/knapsack.ipynb)|[![Open In Gradient](https://assets.paperspace.io/img/gradient-badge.svg)](https://console.paperspace.com/github/ampl/colab.ampl.com/blob/master/authors/lentz/multiobj/knapsack.ipynb)|[![Open In SageMaker Studio Lab](https://studiolab.sagemaker.aws/studiolab.svg)](https://studiolab.sagemaker.aws/import/github/ampl/colab.ampl.com/blob/master/authors/lentz/multiobj/knapsack.ipynb)|
 |Multicommodity transportation problem|[![multmip1.ipynb](https://img.shields.io/badge/github-%23121011.svg?logo=github)](https://github.com/ampl/colab.ampl.com/blob/master/ampl-book/multmip1.ipynb)|[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ampl/colab.ampl.com/blob/master/ampl-book/multmip1.ipynb)|[![Open In Deepnote](https://deepnote.com/buttons/launch-in-deepnote-small.svg)](https://deepnote.com/launch?url=https://github.com/ampl/colab.ampl.com/blob/master/ampl-book/multmip1.ipynb)|[![Open In Kaggle](https://kaggle.com/static/images/open-in-kaggle.svg)](https://kaggle.com/kernels/welcome?src=https://github.com/ampl/colab.ampl.com/blob/master/ampl-book/multmip1.ipynb)|[![Open In Gradient](https://assets.paperspace.io/img/gradient-badge.svg)](https://console.paperspace.com/github/ampl/colab.ampl.com/blob/master/ampl-book/multmip1.ipynb)|[![Open In SageMaker Studio Lab](https://studiolab.sagemaker.aws/studiolab.svg)](https://studiolab.sagemaker.aws/import/github/ampl/colab.ampl.com/blob/master/ampl-book/multmip1.ipynb)|
 |N-Queens|[![nqueens.ipynb](https://img.shields.io/badge/github-%23121011.svg?logo=github)](https://github.com/ampl/colab.ampl.com/blob/master/authors/glebbelov/miscellaneous/nqueens.ipynb)|[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ampl/colab.ampl.com/blob/master/authors/glebbelov/miscellaneous/nqueens.ipynb)|[![Open In Deepnote](https://deepnote.com/buttons/launch-in-deepnote-small.svg)](https://deepnote.com/launch?url=https://github.com/ampl/colab.ampl.com/blob/master/authors/glebbelov/miscellaneous/nqueens.ipynb)|[![Open In Kaggle](https://kaggle.com/static/images/open-in-kaggle.svg)](https://kaggle.com/kernels/welcome?src=https://github.com/ampl/colab.ampl.com/blob/master/authors/glebbelov/miscellaneous/nqueens.ipynb)|[![Open In Gradient](https://assets.paperspace.io/img/gradient-badge.svg)](https://console.paperspace.com/github/ampl/colab.ampl.com/blob/master/authors/glebbelov/miscellaneous/nqueens.ipynb)|[![Open In SageMaker Studio Lab](https://studiolab.sagemaker.aws/studiolab.svg)](https://studiolab.sagemaker.aws/import/github/ampl/colab.ampl.com/blob/master/authors/glebbelov/miscellaneous/nqueens.ipynb)|