Tar,
I have been working on this since the 90s Been calling it digital star, Have you looked at how to multiply and add? When you add overlap two numbers where two line are together rotate one place. When you multiply each line of your multiplier will cause a rotation of the other figure such as with 3*6 take the three symbol rotate one setting for the 2's place then rotate the symbol twice for the 4's place overlap the two symbols to add them together and it comes out to 18. The rule of rotation is rotate the number of clicks based on the power of 2 so 1=2^0 no click, 2^1 = 2 clicks. 4= 2^2 = 2 clicks 8= 2^3 = 3 clicks. I congratulate you though on finding a forum faster than I. I never could get any interest going.