I'm trying to write a program to find midpoint and distance. And here's what I have. Code (Text): Prompt dist If dist=1 then Prompt x,y,x2,y2 √((x2-x)^2+(y2-y)^2)→d Disp d Else Prompt xx1,xx2,yy1,yy2 (xx1+xx2)/2→a (yy1+yy2)/2→b Disp a,b Endif Endprgm When I try to run this program it says im missing a parenthesis somewhere. And I had modified the code before. I dont remember how. But when I did that it said that the variable was already reserved or something like that.