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nicolewhite
searching PlanetScale…
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by
nicolewhite
11y ago
Thanks! Fun was the main motivation for this project. Parsing strings into expressions is something that math.js offers currently with math.parse and expression trees[0]; I was discussing it with the author the other day[1]. [0] http:/
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nicolewhite
11y ago
That sounds like some fun Friday night reading. :) Glad you enjoy Neo4j!
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nicolewhite
11y ago
Thank you for the kind words! I appreciate it. I agree that I should add a bit more instruction for opening up the JS console in Chrome or FF. I'll also add a use case section to show some practical examples. Glad to hear you're i
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nicolewhite
11y ago
That's very cool. I should definitely add functionality for solving a system of equations.
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nicolewhite
11y ago
Hello HN, I was learning JavaScript by completing challenges on CoderByte[0], where one of the hard challenges was to find the point where two lines intersect. The lines were defined by two sets of points, and you had to return your answers
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nicolewhite
11y ago
Yeah, it could be used like that. The main use case that kept coming to mind while I was writing it is interactive tutorials. You could easily build an interactive "what happens when you multiply this expression by [some user input]&qu
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Show HN: Algebra.js – Build, display, and solve algebraic equations
(algebra.js.org)
132 points
by
nicolewhite
11y ago
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30 comments
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nicolewhite
11y ago
+1 for RMarkdown and editR. The best thing about RMarkdown is the ability to do calculations in R and use those variables within LaTeX. A simple example: ```{r} a = 3 b = 6 c = a / b ``` Did you know that $\frac{`r a`}{`
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nicolewhite
11y ago
I can understand that. I find it's easier to use igraph in R, especially if you're going to be doing visualizations. igraph is alright in IPython notebooks, but getting the visualizations to work is a bit of a pain, whereas it wor
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nicolewhite
11y ago
Whatever the default was, I believe it was looking for stuff within a 20 minute drive. I'm currently in a studio in San Mateo for $2.3k, but that's only because I stayed in the same unit I was in last year, so they only raised ren
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nicolewhite
11y ago
Very cool. I wonder why the author decided to use igraph within R instead of Python, as he was already using Python for the frequencies.
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nicolewhite
11y ago
The rent explosion article[0] seems relevant. No 1 bedroom apartments for less than $3000 near my San Mateo office. [0] https://news.ycombinator.com/item?id=10050545
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nicolewhite
11y ago
Cool! There's a typo. > RemindToRead enables seamless user expereinces from visit to return and beyond. Should be: RemindToRead enables seamless user experiences from visit to return and beyond.
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nicolewhite
11y ago
Sure. I just looked at the expression tree you linked to above and it looks like pretty similar functionality.
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nicolewhite
11y ago
You should check out this algebra.js project I've been working on for funsies. var exp = new Expression("a"); exp = exp.multiply("b"); exp = exp.multiply("x"); exp = exp.add("c"); co
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nicolewhite
11y ago
Nice! That looks like viz.js. I've been having a lot of fun with that library.
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nicolewhite
11y ago
I would be interested. We pay for Maxmind and still get a lot of inaccurate data.
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nicolewhite
11y ago
Neat. This is something that R does out of the box: > s = c(1:3, 14, 29, 92:97) > s [1] 1 2 3 14 29 92 93 94 95 96 97 I think I prefer the 1:3 syntax versus 1-3, especially when dealing with negative numbers. In R:
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nicolewhite
11y ago
> He said that there was much discussion over a code part of the wreckage: BB670. "The code is not that of a plane number plate, nor that or a serial number on machinery," he wrote. Interesting. You'd think a code like tha
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StringsAsFactors: An unauthorized biography
(simplystatistics.org)
1 points
by
nicolewhite
11y ago
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0 comments
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nicolewhite
11y ago
If you liked this, check out my RNeo4j[1] package that was used in this analysis. [1] https://github.com/nicolewhite/RNeo4j
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nicolewhite
11y ago
I like the colors; I found after a few seconds I was just looking at the colors and not the numbers. The 6 and 4 are a bit too similar in color, though.
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nicolewhite
11y ago
Only your own. The comments are written to your LocalStorage.
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nicolewhite
11y ago
That is true. It would also betray the name echochamber . :)
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nicolewhite
11y ago
It'd also be neat to populate it randomly with other "users'" comments for further trickery.
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nicolewhite
11y ago
This is definitely a gap that needs filled. When I moved from Austin to SF I ended up throwing out a bunch of stuff that I would have preferred to sell or donate but I just didn't have the time.
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nicolewhite
11y ago
It's a well-written summary of how they responded to customer feedback. Just because emojis are a generally non-serious topic doesn't make this content any less gratifying. I personally thought it was very smart of them to expand
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nicolewhite
11y ago
I wish I had known about this earlier. Usually when I want to show someone a snippet of code I'll use a GitHub gist, but it's certainly much nicer for the recipient to be able to run / edit the code.
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nicolewhite
11y ago
I feel like this should link to the blog post[0] on building the blog instead. Regardless, I love how multipurpose the Jekyll + GitHub Pages combination is. It's used for tiny project sites all the way up to fully-featured blogs like y
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nicolewhite
11y ago
Thank you for helping me discover Slack Pokemon.
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