https://github.com/JacobUb/matrix

A Matrix class for the Crystal programming language.
https://github.com/JacobUb/matrix

Last synced: about 2 months ago
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A Matrix class for the Crystal programming language.

• Host: GitHub
• URL: https://github.com/JacobUb/matrix
• Owner: JacobUb
• License: mit
• Created: 2016-02-24T17:52:54.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2021-03-14T12:54:37.000Z (over 3 years ago)
• Last Synced: 2024-04-10T06:07:01.547Z (6 months ago)
• Language: Crystal
• Homepage:
• Size: 27.3 KB
• Stars: 29
• Watchers: 5
• Forks: 3
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# matrix [![Build Status](https://travis-ci.org/Exilor/matrix.svg?branch=master)](https://travis-ci.org/Exilor/matrix)

This is a Matrix class for [Crystal](https://github.com/crystal-lang/crystal).

There are a few ways to create a Matrix:

```crystal

# Creates a Matrix of Int32 with 3 rows and 2 columns. A Tuple of rows can also 

# be used instead of an array. Each row must have the same number of elements.

Matrix.rows([[1, 2], [3, 4], [5, 6]]) 

# 1, 2

# 3, 4

# 5, 6

# Creates a Matrix with 2 rows and 3 columns. Like with Matrix.rows, the columns 

# must have the same number of elements.

Matrix.columns([[1, 2], [3, 4], [5, 6]])

# 1, 3, 5

# 2, 4, 6

# A Matrix can also be created by giving its number of columns and rows, just 

# like an Array can be created by giving it a starting size. This constructor 

# will yield the linear index, the current row and the current column.

Matrix.new(2, 2) { |idx, row, col| idx  }

# 0, 1

# 2, 3

Matrix.new(2, 2) { |idx, row, col| row  }

# 0, 0

# 1, 1

Matrix.new(2, 2) { |idx, row, col| col  }

 # 0, 1

 # 0, 1

```

Most methods are documented in the matrix.cr file itself.