printf doesn't chop anything except the decimal portion. It makes sense since 40000 means something very different than 4000 (left-chopped) or 0000 (right-chopped), while 5.123 and 5.12 are similar.

You can still use printf, but you first need to chop it using substr, unpack or some other means.

In reply to Re^3: Length of float using printf by ikegami
in thread Length of float using printf by vinaynp

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