I have a form that calculates fields to several decimal places. Is there a way for the user to see the field on a form as a rounded up integer?

Example: The real number is 5.9, but the user should see 6. If I use 999,999 as the format, the user sees 5 not 6.

I don't want to change the real number so the round() function won't do it. I just want it to display 6 without decimals. The underlying number should remain at 5.9 unless the user enters a different number eg 7, then the underlying number should change to 7.0.

Can someone point me in the right direction?

TIA
Cyril.