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joshua chen
Mar 15
CVXOPT initial states
Hi! I am using CVXOPT Quadratic Programming to solve a problem. I notice that solving for fewer
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CVXOPT initial states
Hi! I am using CVXOPT Quadratic Programming to solve a problem. I notice that solving for fewer
Mar 15
Animesh Shree
Jan 27
sparse LU decomposition
Hello all, I am trying to get sparse matrix LU decomposition using umfpack.numeric. But i am unable
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sparse LU decomposition
Hello all, I am trying to get sparse matrix LU decomposition using umfpack.numeric. But i am unable
Jan 27
Nghĩa Nguyễn Trung
7/7/23
Projection onto an ellipsoid
Dear group, I'm not sure whether my discussion suits our group, but if it's not, please let
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Projection onto an ellipsoid
Dear group, I'm not sure whether my discussion suits our group, but if it's not, please let
7/7/23
Andrea Krijgsman
4/19/23
Debugging cvxopt solve code
Dear group, See my code below for an optimization problem op battery. When printing the number of
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Debugging cvxopt solve code
Dear group, See my code below for an optimization problem op battery. When printing the number of
4/19/23
Alessio Castrica
, …
Filipe Oliveira
7
4/19/23
Installation error
Hello! Sorry for ressurrecting this. Just to inform, I've discovered this problem is related to
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Installation error
Hello! Sorry for ressurrecting this. Just to inform, I've discovered this problem is related to
4/19/23
Michael Sommerauer
,
Martin
2
3/20/23
CVXOPT - primal and dual residuals
Hi Michael, Scaling by 1/||h|| and 1/||q|| results in relative residual norms. However, if h or q is
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CVXOPT - primal and dual residuals
Hi Michael, Scaling by 1/||h|| and 1/||q|| results in relative residual norms. However, if h or q is
3/20/23
Johan Norlinder
,
Martin
2
3/20/23
Run code on a embedded system.
Hi Johan, CVXOPT is licensed under GPL3 and is hosted on GitHub: https://github.com/cvxopt/cvxopt You
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Run code on a embedded system.
Hi Johan, CVXOPT is licensed under GPL3 and is hosted on GitHub: https://github.com/cvxopt/cvxopt You
3/20/23
Johan Norlinder
,
Martin
2
3/7/23
Example: Minimizing 1-norm subject to a 2-norm constraint
You could try the following: On Tuesday, March 7, 2023 at 3:02:40 PM UTC+1 johan.n...@gmail.com wrote
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Example: Minimizing 1-norm subject to a 2-norm constraint
You could try the following: On Tuesday, March 7, 2023 at 3:02:40 PM UTC+1 johan.n...@gmail.com wrote
3/7/23
Lauren Gilman
,
keith....@bt.com
2
1/14/23
AttributeError: module 'cvxopt' has no attribute 'matrix'
We need to see a complete working code. Keith From: 'Lauren Gilman' via CVXOPT <cvxopt@
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AttributeError: module 'cvxopt' has no attribute 'matrix'
We need to see a complete working code. Keith From: 'Lauren Gilman' via CVXOPT <cvxopt@
1/14/23
Andreas Elben
12/24/22
Efficient storage of large symmetric matrix for quadratic programming
Dear all, My aim is to solve large scale (10^5 unknowns) unconstrained quadratic programs of the form
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Efficient storage of large symmetric matrix for quadratic programming
Dear all, My aim is to solve large scale (10^5 unknowns) unconstrained quadratic programs of the form
12/24/22
Péter ANTAL
,
Martin
2
11/18/22
Instructions to build a fork
Have a look at "Building and installing from source" in the installation instructions. Run
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Instructions to build a fork
Have a look at "Building and installing from source" in the installation instructions. Run
11/18/22
Nancy Shan
,
Martin
2
11/18/22
ValueError: Rank(A) < p or Rank([P; A; G]) < n
The matrix P must be positive semidefinite in order for the problem to be convex. The matrix -P is
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ValueError: Rank(A) < p or Rank([P; A; G]) < n
The matrix P must be positive semidefinite in order for the problem to be convex. The matrix -P is
11/18/22
Navid Reyhanian
,
Martin
3
10/22/22
A simple SDP in CVXOPT
That's right. Thanks a lot, Martin for your note. On Friday, October 21, 2022 at 2:30:56 AM UTC-7
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A simple SDP in CVXOPT
That's right. Thanks a lot, Martin for your note. On Friday, October 21, 2022 at 2:30:56 AM UTC-7
10/22/22
Peng Zhao
,
Martin
2
8/26/22
What algorithm cvxopt.solvers.qp uses, and can you provide some relevant information.
The qp() routine is a wrapper for coneqp(). You can find a detailed description of the implementation
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What algorithm cvxopt.solvers.qp uses, and can you provide some relevant information.
The qp() routine is a wrapper for coneqp(). You can find a detailed description of the implementation
8/26/22
SH
2/8/22
PICOS/CVXOPT - 'Windows fatal exception: access violation' with MOSEK solver
Hello, I am trying to run an optimal power flow problem with PICOS (which uses CVXOPT) and MOSEK.
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PICOS/CVXOPT - 'Windows fatal exception: access violation' with MOSEK solver
Hello, I am trying to run an optimal power flow problem with PICOS (which uses CVXOPT) and MOSEK.
2/8/22
Николай Венсов
,
Martin
3
1/31/22
error install cxvopt
I use python 3.10 ср, 19 янв. 2022 г., 02:07 Martin <martin.skovg...@gmail.com>: What
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error install cxvopt
I use python 3.10 ср, 19 янв. 2022 г., 02:07 Martin <martin.skovg...@gmail.com>: What
1/31/22
Agniva Chowdhury
,
Martin
4
8/13/21
Trace and non-smooth constraints using CVXOPT
Unfortunately, a general-purpose interior-point method such as CVXOPT is not really suited for large
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Trace and non-smooth constraints using CVXOPT
Unfortunately, a general-purpose interior-point method such as CVXOPT is not really suited for large
8/13/21
Anil
6/22/21
general optimization over PSD matrices
Hi all, I'm interested in solving the following optimization problem, over the space of PSD
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general optimization over PSD matrices
Hi all, I'm interested in solving the following optimization problem, over the space of PSD
6/22/21
Mia P
5/13/21
Geometric Programming with Exponentially Long Constraints
I have a geometric programming problem with 100 variables and around 100 constraints. The objective
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Geometric Programming with Exponentially Long Constraints
I have a geometric programming problem with 100 variables and around 100 constraints. The objective
5/13/21
lyxxf vvvc
5/13/21
Explanation on dims in cvxopt
Hi, Just wondering, for the example given in http://cvxopt.org/userguide/coneprog.html#linear-cone-
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Explanation on dims in cvxopt
Hi, Just wondering, for the example given in http://cvxopt.org/userguide/coneprog.html#linear-cone-
5/13/21
Penny Xie
,
Martin
2
4/9/21
Can I custormize some tolarence rule?
Are you using quadprog() in MATLAB? The warning/error message does not say anything about
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Can I custormize some tolarence rule?
Are you using quadprog() in MATLAB? The warning/error message does not say anything about
4/9/21
Oskar Rasmusson
,
Martin
2
3/4/21
Efficient way to create a sparse matrix
It looks like you're building the index lists row-by-row. This would be the ideal approach if the
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Efficient way to create a sparse matrix
It looks like you're building the index lists row-by-row. This would be the ideal approach if the
3/4/21
Serge Tournier
,
Martin
2
3/1/21
iamax
I just had a look and found that it is a bug that affects Python 3+ versions of CVXOPT. I have fixed
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iamax
I just had a look and found that it is a bug that affects Python 3+ versions of CVXOPT. I have fixed
3/1/21
Arnab Ray
, …
Fan Ye
5
2/25/21
ValueError: Rank(A) < p or Rank([P; A; G]) <
Great! Thanks so much for the reference and confirmation. On Wednesday, February 24, 2021 at 4:47:44
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ValueError: Rank(A) < p or Rank([P; A; G]) <
Great! Thanks so much for the reference and confirmation. On Wednesday, February 24, 2021 at 4:47:44
2/25/21
Daying Chen
,
Martin
2
2/24/21
Expoential cone
No, unfortunately not. The conic solvers in CVXOPT (conelp, coneqp) cannot handle exponential cones.
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Expoential cone
No, unfortunately not. The conic solvers in CVXOPT (conelp, coneqp) cannot handle exponential cones.
2/24/21
應雨軒
,
Martin
7
2/19/21
ValueError: Rank(A) < p or Rank([P; A; G]) < n
After I typed "pip install cvxopt "in my pycharm terminal,I got this error message I can
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ValueError: Rank(A) < p or Rank([P; A; G]) < n
After I typed "pip install cvxopt "in my pycharm terminal,I got this error message I can
2/19/21
Ankit Kulshrestha
2/15/21
CVXOPT converges to same solution regardless of constraints
Hi, I'm trying to optimize a quadratic program to obtain a solution for a constrained SVM. There
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CVXOPT converges to same solution regardless of constraints
Hi, I'm trying to optimize a quadratic program to obtain a solution for a constrained SVM. There
2/15/21
JTK
,
Martin
3
2/9/21
In-place diagonal matrix multiplication
Ok, thank you. I found a satisfactory solution. Perhaps there is a good solution often enough that
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In-place diagonal matrix multiplication
Ok, thank you. I found a satisfactory solution. Perhaps there is a good solution often enough that
2/9/21
Rahul Nath R
2/2/21
Scaling my constraint matrix
Hi, I am encountering a domain error from the CVXOPT package during solving a QP. Could somebody help
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Scaling my constraint matrix
Hi, I am encountering a domain error from the CVXOPT package during solving a QP. Could somebody help
2/2/21
Haifeng Luo
10/6/20
Are there plans to make more speed improvements?
I've run into some speed issues in the function calls of ssqr() or update_scaling() in the files
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Are there plans to make more speed improvements?
I've run into some speed issues in the function calls of ssqr() or update_scaling() in the files
10/6/20