awk -vwgt=$vWeight -vfac=$vFactor '
BEGIN {
printf("wgt:" wgt "\n");
printf("factor:" fac "\n");
total = sprintf("%.0f", wgt * fac);
total2 = sprintf("%.0f", int(wgt * fac));
printf("total:" total "\n");
printf("total2:" total2 "\n");
}
'
if
vWeight=326.4
vFactor=100

the result would be:
total:32640
total2:32639

Could anyone know how is 32639 calucated?

thanks!

Rounding!

Try this...

awk 'BEGIN {printf("%.50f\n", 326.4*100)}'

and you should see something like...

32639.99999999999636202119290828704833984375000000000000

Including the int function simply rounds the output down to 32639. 'int' does not round to the nearest integer

printf (or sprintf) rounds by default when using %f, so without the int, it will display 32640.

HTH.

Jerry

I send you an attached file with the awk source of a simple function for rounding numbers in any scale. Of course there are some limits, but you can edit the code and make it better (if you can).
Have fun.

Attached Files

round.txt (438 Bytes, 49 views)