- Seriously, though, there's one nomogram you (yes you) should know about and have it well-enough engraved in your mind's eye that you can use it with eyes closed. A nomogram for Bayes' theorem: https://www.ovid.com/journals/nejm/abstract/10.1056/nejm1975...
- If you like things like this I can recommend you check out the Chris Staecker youtube channel. He covers all sorts of tools people used to use to do math before computers and calculators, and there are a lot of them. Some of the things people came up with to do what today would be considered relatively simple math are pretty clever, pretty complex, or both.
https://www.youtube.com/@ChrisStaecker
by forgotpwagain
1 subcomments
- The Smith chart is the electrical engineer's favorite: https://en.wikipedia.org/wiki/Smith_chart
You either love it or hate it, depending on how well your electromagnetics class was taught.
by onefiftymike
1 subcomments
- Here’s an old python program to make pdf nomograms from almost any formula. The example of payment for a loan is one of my favorites.
https://github.com/lefakkomies/pynomo
- I am fascinated with nomograms ever since I stumbled upon them.
I spent some time earlier this year creating one for two resistors in parallel. I had seen it in an old book [1] but it was of poor quality.
(I tried to get Gemini writing to write code to generate an SVG file—but it was pretty poor compared to the one that I had done by hand in Affinity Designer.)
[1] https://www.worldradiohistory.com/BOOKSHELF-ARH/Technology/T...
- I read the title as "Nonogram" (Picross) at first !
by analogpixel
0 subcomment
- video explaining what a Nomogram is and how to make them by hand https://www.youtube.com/watch?v=GCd9hANNLsw
- The US Navy still uses nomograms for chemistry control on nuclear reactors!
- There's an old paper about the mathematics of nomograms that I found interested when I stumbled across it: https://doi.org/10.1016/0001-8708(65)90042-3
- Also those who want to quit doing drugs should have one.
- So far my children have not yet had to repeatedly perform complicated calculations, but I look forward to the day. I will definitely teach them with nomograms before we go on to spreadsheets!
Another type of almost-nomogram that's great and practical is the slide rule. In particular in the kitchen, where it makes it really easy to translate proportions. https://entropicthoughts.com/kitchen-slide-rule
- [flagged]
- I think the Numogram is more interesting, highly relevant today due to AI happenings
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