Hi, I have a task and I haven't found a good way to work with it. I need to solve cubic functions like this a*x^3+b*x^2+c*x+d=0, where a,b,c,d are calculated from other data by excel, thus can be changed if I changed other parameters. So I have to solve every cubic function defined by these {a,b,c,d} data. And the nature of the experiment need only positive rational root. First I tried to use maple addin for excel. The problem is, it seemed that maple addin doesn't support multiple parameters for expression. For example, it's ok to use =maple("&1*2",A1), but I can't use =maple("solve(&1*x^3+&2*x^2+&3*x+&4,x)",A2:D2). Is it possible to calculate an expression from multiple cell data?