Changes

<includeonly>{{#ifeq:{{{1<noinclude>|0</noinclude>}}}|0 |0 |{{Sigfig/{{#if:{{{2|}}} |rnd |sum }} |1={{{1}}} |2={{{2}}} |3={{Order of magnitude|{{{1}}}}} }}}}</includeonly><noinclude>{{documentation}}</noinclude>