Steve/Héctor,
With VFP 7 SP1, the precision is stored by VFP and using transform doesn't change it.

x = 456.461
x = x + .0010
? x   && Prints 456.4620
? transform(x)  && Prints 456.4620 again

VFP will do this until it reaches it reaches its limit of 16 digits of precision (combination of whole and decimal values).

HTH.

>Héctor,
>
>Thats a tricky question. For example:
>
>

>x = 456.4618
>x = x + .0002
>? x   && x = 456.4620  this is still 4 decimals
>

>
>I don't really see how it can be done, because the x in the above example is accurate to the ten-thousandths position. Any attempt to use a function such as MOD() or TRANSFORM() to determine the precision would indicate that it is only accurate to the thousandths position.
>
>Of course determining the length to the left of the decimal is a piece of cake.
>
>I'm curious...what do you need this information for?
>
>>Hi, I need to make a function wich returns the lenght of a numeric expresion. Lets say that I have a number, 456.4618 and I want to know how many integers and decimals positions there are. This function must return that there are 3 integers and 4 decimals.
>>
>>Any idea?
>>
>>Thanks