dndn1

9 ms·

1.
by dndn1 11mo ago
Not for the same audience but for much the same idea I made a progressive visualization of saving and compound interest in a blog post about pension saving: https://calcwithdec.dev/posts/pictures-pensions/ I inten
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You Draw Inflation(calcwithdec.dev)
5 points by dndn1 1y ago|0 comments
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by dndn1 1y ago
People say that it's a practice. A few years ago I was determined to practice, and it was hard, and then it became easy, auto-relaxing, like a cheat. I lost that practice and now it's hard again. I think GP is right to question te
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by dndn1 1y ago
Thanks for the prompt! I made a new gallery that's mobile friendly and I almost forgot why I need to land it - adding it to the list!
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by dndn1 1y ago
If you need to know a leap year and it's before the year 6000, I made an interactive calculator and visualization [1]. It's >3 machine instructions (and I admire the mathematical tricks included in the post), but it does do tho
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by dndn1 1y ago
This is a cool way to teach! I was blown away by the little functions at first and I too made a clone to experiment with calculang [1]. I added an evaluation feature (F9) so you can select sub-expressions and see what they do, which was hel
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by dndn1 1y ago
Neat UI, are you using a library for that?
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by dndn1 1y ago
Really pretty outputs! And impressive that the code is shown so elegantly and also interactive. This algorithm is one I use to demo some features in a language I'm making called calculang [0][1] I like the way you step through the logi
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by dndn1 2y ago
Thanks gordito!
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by dndn1 2y ago
Post-retirement is definitely harder. There are also usually rules about what's allowable with the money that built up with tax relief and such. Since these rules differ from country to country even the starting point of deciding what
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by dndn1 2y ago
Aha - I get you!
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by dndn1 2y ago
Author here - Health warning third bullet point is: > Even when there is tax relief to save for a pension, this doesn’t mean that there aren’t taxes on pension income after retirement and the footnote to it is: > often there are taxes
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by dndn1 2y ago
Hi - author here - these compound returns are not guaranteed. I reinforce this point under health warnings. Here the 6% compound returns is an assumption. If that's good or bad to use depends on the purpose of the projection. For long
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by dndn1 2y ago
Author here - This blog post is a 'narrative visualization' to show some nice savings incentives visualized in a chart. I think these are important to have a good understanding about when they are relevant, but the bigger reason I
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by dndn1 2y ago
43,333 homes using 13Bn and 300k cost; I guess you changed one of these or did something else ?
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by dndn1 2y ago
To get my editor component and compiler interacting with that reactive system it got a little messy, and I'll review and hopefully fix it before I push this to a wider calculang playground. Hopefully it's my own bugs that I can fi
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by dndn1 2y ago
In this example it might not be so practical, but in calculang everything is a function including constants. This is because of an emphasis on flexibility. They're a constant here but in another calculang model I can call calculations
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by dndn1 2y ago
I do need to work on this - thanks for the feedback.
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by dndn1 2y ago
I use reactive Javascript which shows errors until a few pieces click together (best that I can understand it atm). So it's normal to have a string of errors and then everything works, but it should work in much less than 2s. I guess t
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by dndn1 2y ago
Thanks for checking it out and for the comment! This surprised me, but you are right. The only thing I can point to referring to this example only is that there is a lot of Javascript in the page, but the calculations are (effectively Javas
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Show HN: How much is 13B euros?(howmuchis13billioneuros.com)
117 points by dndn1 2y ago|95 comments
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Actuarial Terminology Intro, Visualized(calcwithdec.dev)
3 points by dndn1 2y ago|0 comments
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Visualizing Risk(calcwithdec.dev)
1 points by dndn1 2y ago|1 comments
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by dndn1 2y ago
Hi! I made this scroll-based interaction to Visualize risk. The coordinated visuals are using Vega-Lite. The calculations are from composing calculang models: one which simulates returns, using one which calculates pension savings. I plan t
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by dndn1 2y ago
I like your conviction Re "functional programming is very easy to grasp". Many won't but I agree in the purest (sorry) sense. There is no scattered changing state. I think we all learned input-function-output as a construct i
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by dndn1 3y ago
One that I'm watching is the Table mark in Graphic Walker [1]. There is a license thing about logos to note if you do use it in Pretzel [2]. On GW [1], Create Dataset -> Public Datasets -> Student Performance then change the Mark
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by dndn1 3y ago
Looks great and thanks for sharing! You mentioned that you went to some length to implement pivots. How far do you think you will take the pivot feature and UI? For financial type usecases it's pretty much a requirement to be able to m
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by dndn1 3y ago
I followed LFS and BLFS instructions verbatim when I was a kid with so much time on my hands. Enormously informative and also empowering to get from source code to a complex usable system and to be aware of every package. Even just skimming
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by dndn1 3y ago
These are beautiful interactives along with the rest by Sam!
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by dndn1 3y ago
I converted this to formulas in calculang, a language for calculations I'm developing, and visualize the dungeon and its evolution. I really liked this output from a very logical process (although I'll admit, I needed to use one o

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