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jnpn<p>This is as exciting as good old greenarray GA144 multichip</p><p><a href="https://spectrum.ieee.org/efficient-computer-dataflow-architecture" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">spectrum.ieee.org/efficient-co</span><span class="invisible">mputer-dataflow-architecture</span></a></p><p><a href="https://mastodon.social/tags/cpu" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cpu</span></a> <a href="https://mastodon.social/tags/arch" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>arch</span></a> <a href="https://mastodon.social/tags/parallel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>parallel</span></a> <a href="https://mastodon.social/tags/graph" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>graph</span></a></p>

I've been spending time wondering why implementing panning/zooming on a polar #graph was so much more fiddly than I expected

#software #engineering: I wasn't expecting so many weird corner cases, so I reacted to them too late. If I rewrote the code, it would probably be simpler

#math: I think this is really the big one. I was talking with one of the kids and they pointed out that a panned/zoomed cartesian graph is just another cartesian graph, but a panned/zoomed polar graph isn't.

(I *think* what they mean is that pan/zoom are affine transforms in a cartesian graph. Even if the axes are sheared, this is still pretty simple. In polar coordinates this isn't true anymore. But maybe "affine" isn't what I mean or care about. Maybe it's more about self-similarity.)

If that is what's going on, I'm not sure what to do with that information.

What if I converted polar into a wrapped cartesian (i.e. cylindrical) graph, panned/zoomed, then converted back...? That probably doesn't help, since the zoombox also has to transform.

A while ago I created my own polar #graph (θ,r but also built az,el on top of that) inside the excellent #pyqtgraph (#python)

I also implemented a spaced tick computation similar to the one it uses. However, I didn't make it work in zoom for lack of time

I got a bug report about how the ticks/grids/labels "disappear" during zoom (i.e. stay at a larger scale while the zoom goes inside) so I thought I'd just fix that

This turns out to be non-trivial. Or at least I can't think of a simple way to do it

I was getting the xy coords of the corners of the zoombox and computing the θ,r to figure out where I was. That doesn't really work, tho. Imagine the zoom box just to the right of 0,0: θ->0,180. Now imagine it just barely containing 0,0: θ->0,360.

I think I need to measure angles from 0,0 but that means....uh....I need a whiteboard and some rubber duckies. I wish my nerd kids were awake at this hour...

i created a graph in VirusTotal for `ingrammicro.com` and i'm still browsing but couldn't help but notice this sticking out `plus98rus.iso`

there's probably junk in here but if you're curious what i'm looking at here it's public. let me know if you make it more suitable for speculating about what is going down over there please: virustotal.com/graph/embed/g1e

something tells me it wasn't actually the Plus Pack! for windows 98.

Another #graph, showing how it's wasteful to shut off a productive deep space mission (New Horizons). The main costs have already been paid.

From a June 9 Michael Hiltzik article all over the internet about "Trump's NASA cuts would destroy decades of science and wipe out its future," but the graph is credited to Planetary Society.