Rounding a floating point number

U

user923005

Let me also point out that such rounding is rarely needed.  Most of
the time maintaining the original alleged precision and rounding
only the output, via printf, is needed.

I would go one step further:
It's better than rounding the original data.
But sometimes people want to do it anyway.
 
B

Bartc

CBFalconer said:
Let me also point out that such rounding is rarely needed. Most of
the time maintaining the original alleged precision and rounding
only the output, via printf, is needed.

There was a long discussion about this stuff last November in c.l.c with
various examples of why such rounding can be useful. One example was
cleaning noisy data.
 

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