Method: Matrix#row

Defined in:
lib/matrix.rb

#row(i, &block) ⇒ Object

Returns row vector number i of the matrix as a Vector (starting at 0 like an array). When a block is given, the elements of that vector are iterated.



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# File 'lib/matrix.rb', line 404

def row(i, &block) # :yield: e
  if block_given?
    @rows.fetch(i){return self}.each(&block)
    self
  else
    Vector.elements(@rows.fetch(i){return nil})
  end
end