Colin B. Macdonald
Colin B. Macdonald
Thanks @latot: your review if @genuinelucifer does it would be very much appreciated (and good chance to learn).
Re: `diff(f, 2, x)`: I dimly recall SMT used to do it this way, and at least in R2014b it is still mentioned in `help diff`. I haven't checked if...
I read release notes, I don't see it being removed from SMT... so maybe we leave it too for now.
I think the bit about `diff(f, 2, x)` is resolved. Re: speed: I don't think we should do this sort of thing unless we write a re-useable "symvar" call in...
Regarding your specific example: that does look wrong, I think symvar should choose `g` as the variable to differentiate w.r.t.; I've filed #550.
Now: I don't understand what you're trying to fix. `diff(f, 2, x)` is old legacy SMT stuff as discussed elsewhere. But it is supposed to calculate the 2nd partial wrt...
Other objective. This was a `@double/sinint` implementation in pure Octave (as we are merging stuff from the old `specfun` package). But its poor code. Instead I did a `@double/sinint` that...
Lots of questions now that we have sets! Here is special treatment for `isempty`. What about `numel`, and `size` and `length` and... and ...
#542 is a thread which proposes something like `@symset`, a subclass of `@sym` to deal with the specific features of Sets, Intervals, etc (such as those highlighted above). This is...
In principle, we could support the following (without warning, currently it works but gives the `rat()` warning): ``` >> a = sym(0.37) a = (sym) 37 ─── 100 ``` But...