cmatrix | The matrix effect on Windows through PowerShell | Math library

by matriex PowerShell Version: Current License: No License

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kandi X-RAY | cmatrix Summary

cmatrix is a PowerShell library typically used in Utilities, Math applications. cmatrix has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

The matrix effect on Windows through PowerShell.

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Support

cmatrix has a low active ecosystem.

It has 55 star(s) with 18 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

There are 2 open issues and 1 have been closed. On average issues are closed in 39 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of cmatrix is current.

Quality

cmatrix has 0 bugs and 0 code smells.

Security

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

cmatrix code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

cmatrix does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

cmatrix releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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cmatrix Key Features

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cmatrix Examples and Code Snippets

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Community Discussions

Trending Discussions on cmatrix

after running a .sh file go back to the prompt i was before

Determining function time using a wrapper

How do I r/w access ValueTuple members by index?

Using ctypes to call a C++ method with parameters from Python results in "Don't know how to convert parameter" error

Go-vet complains about unsafeptr when CMatrix is converted to slice

creating a data type for wrapping structures with ctypes

Segfault when converting vector into vector>

Different template class realizations but same member functions

Eternal assignment operator call loop C++ template class

How to store values in 2-D array?

QUESTION

after running a .sh file go back to the prompt i was before

Asked 2022-Mar-10 at 17:08

example.sh:

...

ANSWER

Answered 2022-Mar-10 at 17:08

vim and less and many other tools access the terminal's alternate screen and then restore the original screen when they are done. You can use tput to access the alternate screen from your shell script:

Source https://stackoverflow.com/questions/71409192

QUESTION

Determining function time using a wrapper

Asked 2022-Feb-09 at 16:17

I'm looking for a generic way of measuring a functions timing like Here, but for c++.

My main goal is to not have cluttered code like this piece everywhere:

...

ANSWER

Answered 2022-Feb-09 at 16:17

You can utilize RAII to implement a timer that records the execution time of a code block and a template function that wraps the function you would like to execute with the timer.

Source https://stackoverflow.com/questions/71049042

QUESTION

How do I r/w access ValueTuple members by index?

Asked 2021-Oct-19 at 12:02

Following an example I found with google, I tried

What do I need to write into my cs file to make ITuple known there please? I googled for it, didn't find anything (maybe I am blind, but yet).

...

ANSWER

Answered 2021-Oct-19 at 12:02

As the comments mention, there is no way to use an index setter, and as far as I can see, the indexer always throws IndexOutOfRangeException for valuetuple on .net 4.8

The obvious solution would be to write your own indexer:

Source https://stackoverflow.com/questions/69629942

QUESTION

Using ctypes to call a C++ method with parameters from Python results in "Don't know how to convert parameter" error

Asked 2021-Oct-19 at 03:32

I'm trying to use the following C++ class from Python3.7, but can't get the first method 'Set' to work, much less the operator overload methods. I've tried many variations of the Python wrapper and the extern block but I either get the "Don't know how to convert parameter 5" error or a segmentation fault. The examples online and SO answers I've found are too basic or address other issues.

Should my argtypes 1st argument be a pointer to the object? I don't know what syntax would be used to indicate that.

CMatrix.h:

...

ANSWER

Answered 2021-Oct-18 at 01:57

Here's the problem:

Source https://stackoverflow.com/questions/69609778

QUESTION

Go-vet complains about unsafeptr when CMatrix is converted to slice

Asked 2021-Mar-03 at 13:15

I'm using openCV with Go and have this function:

...

ANSWER

Answered 2021-Mar-03 at 13:15

See Go Issue #40701. A safer alternative would be the following:

Source https://stackoverflow.com/questions/66452487

QUESTION

creating a data type for wrapping structures with ctypes

Asked 2021-Jan-14 at 23:34

So I'm learning about ctypes and I have a situation similar to the following:

I have a shared library with structures that implement a matrix of doubles and a matrix of complex numbers. I want to wrap both of these structures with ctypes. I know I can make two classes to wrap each structure, but I'm wondering if there is a straightforward way to wrap both structures with one class by specifying a data type.

For example, maybe my library libmatrix.so has the following source file:

...

ANSWER

Answered 2021-Jan-14 at 23:34

Here's a rough example how it could be done. Everything in Python is an object, so the data type can be passed directly and used to allocate the array. A few overrides make the matrix easier to manipulate and display.

Source https://stackoverflow.com/questions/65724815

QUESTION

Segfault when converting vector into vector>

Asked 2021-Jan-03 at 00:54

Good day. I was wondering if I could get some help on this. I've got the following:

...

ANSWER

Answered 2021-Jan-03 at 00:46

The problem

The problem is in your constructors, see comments:

Source https://stackoverflow.com/questions/65545506

QUESTION

Different template class realizations but same member functions

Asked 2020-Aug-20 at 17:56

I have a template matrix class with some typical member functions such as inverse, determinant, operator*, etc.. And I want to reuse the code for these member functions in template realizations for both fixed- and dynamic size matrices. Is this possible? and if yes, how?

In the code below, like Eigen, I use "-1" for dynamic dimensions. Yes I know I could use a library for this, but for my application, that is not feasible. The standard functionality is not possible due to the nature of the application (CUDA)

Is it possible to make a template class with different member variable size depending on the template parameters? For instance when Dynamic_Rows = -1 and Dynamic_Cols = -1, then the data is just T **data, but otherwise its T data[Rows][Cols].

As of now, I have one template class for dynamic size matrices ("minimal" example below, note that the code is subject to errors/mistakes because I am relatively fresh in "advanced" class templating).

But I want to have a fixed size data member variable in the case of a fixed size matrix instantiation.

...

ANSWER

Answered 2020-Aug-20 at 08:44

Is it possible....[...] ...when Dynamic_Rows = -1 and Dynamic_Cols = -1, then the data is just T **data, but otherwise its T data[Rows][Cols]?

You can provide a trait type whose specializations gives you the proper type for the CMatrix

Source https://stackoverflow.com/questions/63500588

QUESTION

Eternal assignment operator call loop C++ template class

Asked 2020-Aug-13 at 17:05

I have a matrix class with a subset of its member functions included,

...

ANSWER

Answered 2020-Aug-13 at 17:05

The assignment operator CMatrix::operator= calls itself recursively.

Source https://stackoverflow.com/questions/63398585

QUESTION

How to store values in 2-D array?

Asked 2020-May-22 at 12:15

#include
#include
#include

using namespace std;

class CMatrix
{
private:
    string name;
    float** matrix;
    int nRow;
    int nCol;
    int nElement;  //총 element 수

public:
    CMatrix() {
        this->name = "Anonymous";
        this->nRow = 4;
        this->nCol = 4;
        matrix = new float* [nRow];
        for (int i = 0; i < nRow; i++)
            matrix[i] = new float[nCol];

        for (int i = 0; i < nRow; i++)
            for (int j = 0; j < nCol; j++)
                matrix[i][j] = 0;
    }
    CMatrix(string _name, int _nRow, int _nCol) {
        this->nRow = _nRow;
        this->nCol = _nCol;
        this->name = _name;
        matrix = new float* [nRow];
        for (int i = 0; i < nRow; i++)
            matrix[nRow] = new float[nCol];
    }

    CMatrix(CMatrix& n1);
    ~CMatrix() {};

    void setElement() {
        cout << "" << endl << ">>";
        for (int i = 0; i < nRow; i++) {
            for (int j = 0; j < nCol; j++)
                cin >> matrix[i][j];
        }
    }

    void printMatrixinfo() {
        cout << this->name << '(' << this->nRow << ", " << this->nCol << ", " << nRow * nCol << ") " <<             
    endl;
        for (int i = 0; i < nRow; i++) {
            cout << "[ ";
            for (int j = 0; j < nCol; j++)
                cout << matrix[nRow][nCol] << " ";
            cout << "] ";
            cout << endl;
        }
    }

    string getName() {
        return this->name;
    }
};

void getData(string& _name, int& _nRow, int& _nCol) {
    cout << ">";
    cin >> _name >> _nRow >> _nCol;
}

int main() {
    string name;
    int nRow, nCol;
    getData(name, nRow, nCol);
    CMatrix x1(name, nRow, nCol);
    x1.setElement();
    x1.printMatrixinfo();
    cout << endl;

    return 0;
}

...

ANSWER

Answered 2020-May-22 at 12:15

It might be helpful if you also add the output of the error. Other than that, I can't see a reason why you would use raw pointers, or not use std::vector<> or just simply use multi-dimensional arrays. Also, you have a memory leak, make sure to delete all the new initialized value of the matrix in the class destructor.

Edit: I saw your edit to the question and the comment. The edit to the code still have one error, but it is not in the setElement() but in void printMatrixinfo(), specifically the line:

cout << matrix[nRow][nCol] << " ";

nRow and nCol is out of bounds. from the structure of your code, I guess you want to use cout << matrix[i][j] << " "; here instead.

and again, if this was an problem condition to use raw pointers, dont forget to delete the matrix at destructor (your ~CMatrix() should not be empty!)

Source https://stackoverflow.com/questions/61952870

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