<div dir="ltr"><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div><div class="h5">
<br>
<br>
</div></div>I think the coolstr package<br>
<br>
    <a href="http://ctan.org/pkg/coolstr" target="_blank">http://ctan.org/pkg/coolstr</a><br>
<br>
can tell "numeric strings" from others, so you could redefine<br>
\mathbf to analyze the characters and then apply font commands<br>
accordingly.<br>
<br>
HTH -- Uwe.</blockquote></div><br><br>Thanks<br></div>