# File diffeq.rb, line 5 def start_y order = 1 while order <= 1 do term_no = 1 while term_no <= 1 - order + 1 do $y_higher[order][term_no] = (c($y_init[term_no + order -1])) * $h ** (term_no-1) / ((factorial_1(term_no-1))) term_no += 1 end order += 1 end end