method

columns

v1_8_6_287 - Show latest stable - Class: Matrix

columns(columns)

public

Creates a matrix using columns as an array of column vectors.

  Matrix.columns([[25, 93], [-1, 66]])
     =>  25 -1
         93 66

# File lib/matrix.rb, line 144
  def Matrix.columns(columns)
    rows = (0 .. columns[0].size - 1).collect {
      |i|
      (0 .. columns.size - 1).collect {
        |j|
        columns[j][i]
      }
    }
    Matrix.rows(rows, false)
  end

columns

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