查看“模板:Order of magnitude”的源代码

<includeonly>{{{{{|safesubst:}}}#ifexpr:{{{1|0}}}=0
   |{{{{{|safesubst:}}}#ifexpr:abs{{{1|0}}}1=1
      |0
      |{{{{{|safesubst:}}}#expr:floor((ln(abs{{{1}}}1)/ln10)+1)}}
    }}
   |{{#expr:floor((ln(abs({{{1|0}}}) )/ln 10)+1E((abs{{{1|0}}}>1E100 or abs{{{1|0}}}<1E-100)-14))}}
}}</includeonly><noinclude>
{{documentation}}
</noinclude>