# Rounding zero with siunitx

I am trying to use siunitx to format numbers. In the following MWE I confused why the "format" of the two numbers is different. Is there a way to automatically format 0.00000 as 0.00 just like 1.000000 is shown as 1.00?

\documentclass{article}
\usepackage{siunitx}
\begin{document}
\noindent
\num[round-precision = 2, round-mode = places]{1.000000} \\
\num[round-precision = 2, round-mode = places]{0.000000}
\end{document}

• I cant confirm your founding. Both numbers has the same number of decimal digits (2). Jun 26 '21 at 3:34
• I get "1.00" and "0.00" as expected. There were lots of updates after the v3 release. I run 2021-06-22 v3.0.15 (edit just updated to 2021-06-24 v3.0.16, same expected result). What version do you have? Jun 26 '21 at 6:31