# File lib/math_ml/latex.rb, line 808
                        def cmd_sqrt
                                if @scanner.scan_option
                                        i = parse_into(@scanner[1], Array.new)
                                        i = i.size==1 ? i[0] : (Row.new << i)
                                        b = parse_any
                                        Root.new(i, b)
                                else
                                        Sqrt.new << parse_any
                                end
                        end