<div dir="ltr">Can you change the font of \mathbf so that the font of only digits
changes and everything else will be typeset in the default font. For
example, say your default font for \mathbf is cmr but you only want to
change the font of digits inside \mathbf to cmtt and nothing else so
that $\mathbf{xyz0123}$ give you xyz in cmr but 0123 in cmtt. Is
this doable? (of course without creating a new font or modifying an existing font)<br>
<br>Thanks</div>