Dr. Juno Woods

Okay. Instead of doing a pull request, I'd just suggest you look at the commits I made in my fork (except for adding the gemspec). I also added a trivial...

Workaround is img.real.clear, but that may create a memory leak.

So it looks like ActiveRecord expects `clear` on Array to work differently. I was able to get rid of the aforementioned problem simply by renaming, in `lib/shoes/ruby.rb`, `def clear` to...

I have added an MWE and am tentatively working on a solution.

This is really tricky because when we define nested states, we pass a machine, which has a model class affiliated but not a class instance. The nested instance is the...

I'm confused about what you're asking in the last paragraph. Can you give me an example?

Okay, so I believe [this](https://github.com/SciRuby/nmatrix/blob/0de5c43983658cc27b30d712048e931adc9ec8e8/ext/nmatrix/math/imax.h#L49) is the (or a) cause (then also a few other similar lines, like 52). That doesn't necessarily help you, but I wanted to track it...

This puzzled me for a while, and then I realized it's definitely a bug in NMatrix. Let me get back to you.

Only thing I can come up with is that it's not correctly linking libruby. For example, see this bug: https://github.com/brianmario/mysql2/issues/657 Unfortunately, when I do `ldd symengine.so`, it doesn't list libruby...

Okay! I found the problem. symengine.rb requires that libruby be a shared object, which rb-env/ruby-build doesn't produce by default. So two things need to be done: 1. symengine.rb needs to...