With InForm, you could probably have a ListBox control and add each output line to it with the
AddItem method.
You can also set the list's AutoScroll property to true, so it'll emulate a console.
That would mimick a console window, and the output would be scrollable.
If you consider the overhead, you'd probably feel it's more reasonable to reformat your output to the default 80x25 of a console window.
Now, to truly take advantage of InForm, you'd design an interface with textbox controls for input and would have the output show in labels after a button was clicked to calculate results. Then it'd be a true GUI app.