"jose orlando t. ribeiro", You mean that i create dictionary of repeated datas and some how indicate those datas in array and read it from dictionary. This seems a good solution.
"Michael Neary", I think my last post has clear some of your confusion, For more explaination, consider an example of Sine or Cos value function through a table and the table used your 75% of ROM.
"Andy Neil", I don't have XDATA in my MCU and i donot want to add one. I only want algorthim which can use some of MCUs time and little RAM say 2 or 3 bytes but reduces data size.
Thanks!