how to type #1 for math-macro in 1.4.x?

[John McCabe-Dansted]

I recall that in 1.3.x you could type #1 in a math macro to represent
argument 1. In 1.4.x this seems to just give you the text string "#1".
How do we do this for 1.4.x?

--
John C. McCabe-Dansted
PhD Student
University of Western Australia