Why 2+2 dont make 4 in clipper???

[mannucci]

i have a problem with matematical operation, i have two variable that inspected with the debugger say me a value but if clipper make the sum of the two variable the result is incorrect. how i can fix? i try to convert with str( and back with val( but is the same. Please help.

 

[krisbrixon]

They may be large values of 2.


Just kidding, there was an old joke of "2+2=5 for extremely large values of 2".

I do not know how to help for real.
These are the only things I use:
val(alltrim(amt))
STR(SEQ,3,0)

Kris

 

[Bozz]

What are the values? What do you get? What version of Clipper? Ian Boys
DTE Systems Ltd

 

[mannucci]

version is Clipper 5.2d
varius value, very big like 12,4 numeber all used

 

[mbinfo]

The problem with aritmetic operations is that Clipper uses always real numbers. You must use Round(number,decpos) to adjust your number to the appropriate result.

Sometimes there is a "magic number" that is just typed and the internal result is different. I suppose that in a very large calculus program this procedure will produce a great overhead.

Ulisses.