How do I resolve ambiguity in the "refinemesh" arguments?

In the definition of the arguments of refinemesh it says

"An extra input argument it is interpreted as a list of subdomains to refine, if it is a row vector, or a list of triangles to refine, if it is a column vector."

What if I wanted to refine only a single triangle? How can I get refinemesh to not interpret the single value as a list of subdomains?

Answer 1

[Walter Roberson]

Perhaps pass in NaN as a second element. Or pass in the same triangle number twice.

[Carolyn]

Passing NaN as a second element did not work. But passing in the same triangle number twice did.

Thanks for something that works. This will be a slightly annoying kluge to have to implement.