Hi,
Here's a patch for a very old bug in the microwave inductor (which is
a 5.1.0 milestone).
I haven't fixed the underlying issue here, but it does stop invalid
outputs being generated with a warning.
An example of inputs that generate invalid outputs (0.25mm trace
width):
* Draw inductor 5mm long, ask for 6mm: this is too small
* Draw inductor 5mm long, as for 7mm: this can't be represented
accurately
These aren't trivial to fix and only affect very "Short" inductors of
a few small turns. I have done the calculations for the first case (it
doesn't have a closed-form solution), but haven't started the second
bit, and there's a refactor and a good think needed. So, submitting
this to close out the 5.1.0 bug and at least prevent invalid outputs.
