>Is there a function like trim(expression)
>to be used with numeric fields ?

Are you trying to convert a numeric to a character string? If so, see the STR() function -- lcValue = str(lnvalue, 5, 2). That example returns a character string of width 5 with 2 decimal places.

If you are looking to leave it numeric, there is always SET DECIMALS TO X where X is the number of decimal places. If you need to mask the input for a textbox control, use the InputMask property of the textbox. e.g., 99.99. This is equivalent to the PICTURE clause in FP 2.x.