Clp | COIN-OR Linear Programming Solver | Math library

by coin-or C++ Version: releases/1.17.8 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | Clp Summary

Clp is a C++ library typically used in Utilities, Math, Example Codes applications. Clp has no bugs, it has no vulnerabilities and it has low support. However Clp has a Non-SPDX License. You can download it from GitHub.

Clp (Coin-or linear programming) is an open-source linear programming solver. It is primarily meant to be used as a callable library, but a basic, stand-alone executable version is also available. It is designed to find solutions of mathematical optimization problems of the form. minimize c'x such that lhs ≤ Ax ≤ rhs and lb ≤ x ≤ ub. CLP includes primal and dual Simplex solvers. Both dual and primal algorithms can use matrix storage methods provided by the user (0-1 and network matrices are already supported in addition to the default sparse matrix). The dual algorithm has Dantzig and Steepest edge row pivot choices; new ones may be provided by the user. The same is true for the column pivot choice of the primal algorithm. The primal can also use a non linear cost which should work for piecewise linear convex functions. CLP also includes a barrier method for solving LPs. Clp is written in C++ and is released as open source under the Eclipse Public License 2.0. It is distributed under the auspices of the COIN-OR Foundation. The Clp development site is

Support

Quality

Security

License

Reuse

Support

Clp has a low active ecosystem.

It has 318 star(s) with 74 fork(s). There are 17 watchers for this library.

It had no major release in the last 12 months.

There are 36 open issues and 150 have been closed. On average issues are closed in 54 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of Clp is releases/1.17.8

Quality

Clp has no bugs reported.

Security

Clp has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

Clp has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

Clp releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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Clp Key Features

No Key Features are available at this moment for Clp.

Clp Examples and Code Snippets

No Code Snippets are available at this moment for Clp.

Community Discussions

Trending Discussions on Clp

How to convert this XML into kotlin array

Currency Converter JavaScript projects flag issue

ElementTree not finding present tags

flutter CustomPainter - how to cut out a hole in line path

creating sql function implemented in java via flyway

Encounter "RuntimeError: The operating system's C++ standard library is not installed correctly" when build drake from source using bazel

Remove duplicates from lists in columns

Format money number_format PHP

How to transform data structures in Prolog using multiple rules, declaratively

How can I display only errors when running dotnet watch run?

QUESTION

How to convert this XML into kotlin array

Asked 2022-Mar-06 at 19:36

I need help if there is any expert in XML and kotlin. I would like to know how to convert the below XML access it in kotlin code and then convert it into kotlin array file i.e. like (USD -> $) so the value of USD is the symbol which the unicode of from the XML.

I know in Android there is java utill class but the problem there is there is not all currencies symbols available i.e. for AFN -> there is AFN but in actual it should be -> ؋.

here is XML file:

...

ANSWER

Answered 2022-Mar-06 at 18:55

val xml = """
  
    Albania Lek
    Afghanistan Afghani
    Argentina Peso
    Aruba Guilder
    Australia Dollar
    Azerbaijan New Manat
  
"""

data class Currency(
  val code: String,
  val name: String,
  val symbol: String
)

val currencies = xml.trimIndent()
  .substringAfter(">").substringBeforeLast(")|()".toRegex())
      .filter { s -> s.isNotBlank() }
    Currency(
      code = splitted.first(),
      name = splitted.last(),
      symbol = (splitted.drop(1).dropLast(1).lastOrNull() ?: "")
        .split(",")
        .filter { s -> s.isNotBlank() }
        .map { s -> Integer.parseInt(s.trim(), 16).toChar() }
        .joinToString("")
    )
  }

currencies.forEach { println(it) }

Source https://stackoverflow.com/questions/71370824

QUESTION

Currency Converter JavaScript projects flag issue

Asked 2022-Mar-02 at 17:43

I submitted all of my code below for a better understanding. The code is fine, my question is: How can I perfectly show multiple countries with their country name list? I mean: When I change the country name, then the flag image should be changed automatically, so users see the country name and image. I already put many links in my loadFlag() function in my js file, but this is not working. Please help me, how can i do it with my code? Thanks in advance and love from the top of my heart.

...

ANSWER

Answered 2022-Mar-02 at 17:43

You're loading country flags from flagcdn.com in which each png is named after a two-letter country code that you have in your country_code value.

You just need to update your loadFlag function to properly update the img tag's property values. See the working code snippet below.

Source https://stackoverflow.com/questions/71325304

QUESTION

ElementTree not finding present tags

Asked 2022-Feb-23 at 15:19

Here's how I parse the xml response from this url

...

ANSWER

Answered 2022-Feb-23 at 15:19

Unfortunately, you have to deal with the namespace in the file. So try it this way:

Source https://stackoverflow.com/questions/71239102

QUESTION

flutter CustomPainter - how to cut out a hole in line path

Asked 2022-Feb-16 at 18:52

I have a CustomPaint which paints an oval.

I want to cut out a hole at a specific position which I couldn't figure out yet how that works.

I tried:

...

ANSWER

Answered 2022-Feb-14 at 08:33

You can control the length of the line.

Source https://stackoverflow.com/questions/71108148

QUESTION

creating sql function implemented in java via flyway

Asked 2022-Jan-16 at 22:29

I'm trying to create a function like:

...

ANSWER

Answered 2022-Jan-16 at 22:29

I think I have found what caused the problem, atleast I can now create the function without a problem. The root cause is that Flyway appears to:

Source https://stackoverflow.com/questions/70673926

QUESTION

Encounter "RuntimeError: The operating system's C++ standard library is not installed correctly" when build drake from source using bazel

Asked 2022-Jan-07 at 01:10

System:Ubuntu 18.04

I am trying to build Drake from source using Bazel, I have installed the prerequisite using the provided install_prereqs.sh. However, when I am trying to build drake from source, I encounter a strange problem. It turns out to be related with the tools/workspace/pybind11/mkdoc.py file and //bindings/pydrake:generate_pybind_coverage target. The terminal output is shown below.

After I run

...

ANSWER

Answered 2022-Jan-07 at 01:10

The complaint is about the C++ standard library, i.e., libstc++ and its headers. The Clang compiler itself seems to be installed correctly, but it's looking for the GCC standard C++ library, and failing.

The problem might be if you have GCC 10 installed (or partially installed).

Does the https://github.com/RobotLocomotion/drake/issues/15652 advice help? Specifically:

Source https://stackoverflow.com/questions/70604791

QUESTION

Remove duplicates from lists in columns

Asked 2021-Dec-29 at 16:52

I have two columns, Col_A and Col_B, in a dataframe, df.

...

ANSWER

Answered 2021-Dec-29 at 16:52

Looks like You're using string as data.

Source https://stackoverflow.com/questions/70522085

QUESTION

Format money number_format PHP

Asked 2021-Dec-27 at 12:52

I am trying to format from EURO to Latin American countries. But I can't get all of them to format correctly.

These two lines work fine:

...

ANSWER

Answered 2021-Dec-25 at 15:37

As added background information based on my earlier comments, in case you were having trouble separating all the inter-related concerns, and putting all the pieces together, (i don't know if you are or not); Here is some code i've used in the past solving a similar issue. I've adjusted it based on your datamodel/code and added some comments:

Personally, since keeping half the currency information in the database and the other half in code seems messy, i would add 4 columns to your monedas database table; namely (in the case of 'Ecuador' for example):

Source https://stackoverflow.com/questions/70477765

QUESTION

How to transform data structures in Prolog using multiple rules, declaratively

Asked 2021-Dec-18 at 13:33

I would like to find a way to transform data structure in Prolog given set of constraints/transformation rules.

Motivating example

Let's say we want to validate/enrich SQL queries according to some rules. We are only interested in simple SQL queries and only consider WHERE/GROUP BY clauses now, of the form WHERE filter(a) AND filter(b) AND ... GROUP BY c,d,... (where a, b, c, d are column names).

The model of such query could look like:

[filter(a), filter(b), group(c), group(d)]

We may have rules like this:

Column a must be present in either filter or grouping (but only once). If not present, generate 2 solutions by adding to filter and to grouping.
Grouping must not be empty (if empty, add default grouping by column a).
Must be not more than 2 grouping (if more than 2 then generate multiple solutions by removing extra grouping).
No column may be present in both filter and grouping (if it happens then generate 2 solutions by removing column from either filter and grouping).
etc.

Some rules are obviously "conflicting" (e.g. if we add mandatory grouping we may exceed max number of groupings and will have to produce multiple solutions or no solutions at all, depending on specific rules).

What I tried

So far I was only able to come up with something like this:

...

ANSWER

Answered 2021-Dec-17 at 22:06

I think CHR is a reasonable way to go here. You can explore alternative solutions with CHR because a rule's right-hand side, while often just constraint terms, can in fact be an arbitrary Prolog goal. This includes disjunctions. For example:

Source https://stackoverflow.com/questions/70371886

QUESTION

How can I display only errors when running dotnet watch run?

Asked 2021-Dec-15 at 23:11

My dotnet 6 project has several hundred warnings. And when I run dotnet watch run it shows all of those yellow warnings. And it does it every time Hot Reload applies a rude edit. How can I get it to suppress those warnings? I have tried dotnet watch run --property:clp=ErrorsOnly but that does not work.

...

ANSWER

Answered 2021-Dec-15 at 23:11

appsettings.json & appsettings.Development.json

Source https://stackoverflow.com/questions/70368163

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install Clp

What follows is a quick start guide for obtaining or building Clp on common platforms. More detailed information is available here.
For newer releases, binaries will be made available as assets attached to releases in Github here. Older binaries are archived as part of Clp here. Due to license incompatibilities, pre-compiled binaries lack some functionality. If binaries are not available for your platform for the latest version and you would like to request them to be built and posted, feel free to let us know on the mailing list.
Linux: On Debian/Ubuntu, Clp is available in the package coinor-clp and can be installed with apt. On Fedora, Clp is available in the package coin-or-Clp.
Windows: The easiest way to get Clp on Windows is to download an archive as described above.
Mac OS X: The easiest way to get Clp on Mac OS X is through Homebrew. brew tap coin-or-tools/coinor brew install coin-or-tools/coinor/clp
Running clp gives you some hints. It can do a unit test (clp -unitTest) and solve netlib problems (-netlib or -netlibp using primal). It can also solve problems and set tolerances etc. Just do. and then try ? or setting various stuff. On Linux, clp can do file completion and line editing if it can find the history, readline, and termcap packages when building. If you want to stress the code, you can set various stuff, e.g., dantzig pricing and then go into netlib testing. It is not guaranteed that it will solve all netlib instances if you get too creative. For instance using presolve makes netlib solve faster - but pilot87 prefers a large infeasibility weight. So. There are examples in examples. To create an executable, build with coinbrew as above and then do.
minimum.cpp This is the simplest possible program to read an mps file.
defaults.cpp. This does not do much more, but it does it in much more complicated way by specifically setting defaults so it does give more useful information. It also prints a solution in a format similar to that of MPSX.
presolve.cpp This is a good driver for larger problems.

Support

If you have Doxygen available, you can build a HTML documentation by typing. in the build directory. If Clp was built via coinbrew, then the build directory will be ./build/Clp/master by default. The doxygen documentation main file is found at <build-dir>/doxydoc/html/index.html.

Find more information at: