Syntax error... or am I doing something wrong?

[DrD]

When the polar value is completely represented, in the two examples you provided, they did work in [Home] r10077. Copy/paste separates the angle parameter, and makes it look like:

1/2 ∡90, and 10^2 ∡90; instead of 1/(2∡90), and 10^(2∡90).

That's probably not the issue, but the examples paste into the command line separating the angle, which, coincidentally, DOES cause a syntax error. If the polar value is enclosed in parentheses, (not strictly required), there should be no issue (I hope!).