https://github.com/boppreh/matrix

Pythonic 2D matrix data type
https://github.com/boppreh/matrix

Last synced: 2 months ago
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Pythonic 2D matrix data type

• Host: GitHub
• URL: https://github.com/boppreh/matrix
• Owner: boppreh
• Created: 2014-12-11T03:25:38.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2015-11-04T19:56:01.000Z (over 9 years ago)
• Last Synced: 2025-01-25T23:34:17.218Z (4 months ago)
• Language: Python
• Homepage:
• Size: 227 KB
• Stars: 2
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
matrix

======

Pythonic 2D matrix data type. This is a generic data structure with all the operations you would expect:

    m = Matrix(2, 3) # 2 rows, 3 columns, filled with None.

    m = Matrix([[1, 2, 3], [4, 5, 6]]) # Exactly what you expect.

    

    # Access with (row, col) indices.

    m[0,1] # Element at row 0, column 1.

    m[-1,-1] # Element at last row, last column.

    m[(0,1):(2,3)] # Two dimensional slice returns a new Matrix.

    

    # Or by absolute elements, like a list.

    m[5] # Element at index 5, regardless of rows and columns.

    m[2:] # From the element 2 until the end.

    

    7 in m # Searches for elements.

    

    # You can also set values using the techniques above:

    m[1:-1] = list(m[:(2,2)]) # I have no idea what this means, but it works!

    

    # Helper methods are also provided:

    m.addcol(2, [7, 8]) # Adds column at index 2, filling with elements 7 and 8.

    m.addrow(0) # Adds a new first row, with None values.

    m.removerow(0) # Removes the row we added.

    

    m.map(lambda x: x**2) # Returns matrix with squared elements.

    

    # 1 2 7 4

    # 5 5 8 6

    print(m)

This is a simple data structure. It's not supposed to hold large amounts of data or be used in linear math.