I am a structural engineer from India. I found SMath while searching on net for an alternative to Mathcad and I am using it for about 3 years. I have a request to add a feature to SMath, which I was thinking for a long time.
I will explain it down:
As you see in the picture above:
SMath with 3 numbers (or more) sheets (like excel).
One sheet of these 3 will be for a database with cells of rows and columns similar to excel.
One sheet for custom functions applicable for that workbook.
One is the main SMath worksheet.
As a structural engineer I have sometimes a large number of data as design forces or support reactions or deflections of structural elements. I think, if the database sheet is available with SMath all those calculations can be easily processed. I like to hear from you.
I agree, this would be a nice feature. In the meantime you could have (2) areas, (1) for inputs and (1) for equations above all of your calcs; its not as glamorous as your proposed idea, but it should obtain the same result.