Method: Matrix#to_s

Defined in:
lib/extendmatrix.rb

#to_s(mode = :pretty, len_col = 3) ⇒ Object

Returns a string for nice printing matrix



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# File 'lib/extendmatrix.rb', line 437

def to_s(mode = :pretty, len_col = 3)
  return "Matrix[]" if empty?
  if mode == :pretty
    clen = cols_len
    to_a.collect {|r|
      i=0
      r.map {|x|
        l=clen[i]
        i+=1
        format("%#{l}s ", x.to_s)
      } << "\n"
    }.join("")
  else
    i = 0; s = ""; cs = column_size
    each do |e|
      i = (i + 1) % cs
      s += format("%#{len_col}s ", e.to_s)
      s += "\n" if i == 0
    end
    s
  end
end