I downloaded rizzoworks's project, and changed around some things. This was all their idea, and I only used some of their scripts, and completely changed around other things. When Smiley asks you to type a varible, then type a number. When Smiley asks you to type an operator, then use the scale below: + means addition or plus - means subtraction or minus * means multiplication or times / means division or divided by Hope that you are able to solve all of your equations!