For the x,y,z you'll probably need to supply a data file, but if it's just every combination of every number then it's not really data it's just more constants, right ?
For a, b, c (and maybe x,y,z as I said above) you need to create a parameter for each constant, then refer to that in the calculated field that will create the result for you.
Find my approach as reference below and stored in the attached workbook v10.4
You create parameters and calculated fields to get the result.
> Calculated fields
> Set up your view and show parameter control.
Let me know if this helps.
Parameters_x_y.twbx 1.2 MB