this post was submitted on 21 Oct 2023
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Tried gnuplot which plot only require basic math (alien.top)
submitted 1 year ago by [email protected] to c/[email protected]
8 comments fedilink hide all child comments
 

I tried gnuplot and amazed by its performance. It allows you to directly plot mathematical formulas into graphs with just one single line of math equation.

#+BEGIN_SRC gnuplot :file images/trigon01.png
plot [-10:10] sin(x),atan(x),cos(atan(x))
#+END_SRC

https://preview.redd.it/bmp9izl57kvb1.png?width=640&format=png&auto=webp&s=3c13ffc06a7f3b196b2a71067b9aa8d6d048b2e0

when set arguments, it might requires one more line:

#+BEGIN_SRC gnuplot :file images/sd01.png
g(x) = exp(-0.5*(x/s)**2)/s
plot s=1 g(x), s=2 g(x), s=3 g(x)
#+END_SRC

https://preview.redd.it/efjvennd7kvb1.png?width=640&format=png&auto=webp&s=50cbd91d566721af5a95cd9737c2ee9ac79786e2

I feel frustrated, how I wish could acquainted with such a tool a decade ago while grappling with the challenges of visualizing mathematical formulas.

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[–] [email protected] 2 points 1 year ago (1 children)

Also, check out https://archive.org/details/gnuplotinactionu0000jane (Gnuplot in action : understanding data with graphs)

[–] [email protected] 1 points 1 year ago

great book ,thank you.

[–] [email protected] 1 points 1 year ago

Oh this is really cool, and reminds me that I'm not using org-babel nearly enough.

[–] [email protected] 1 points 1 year ago

Not only is there an emacs mode for it, there is a whole TeXmacs emacs-a-like for mathematics

[–] [email protected] 1 points 1 year ago

Use an org-table with your plots and you aren’t getting any work done for a week!

[–] [email protected] 1 points 1 year ago (2 children)

nowadays, I don't see why anyone would use gnuplot instead of matplotlib.

[–] [email protected] 1 points 1 year ago

Because I already know it well and I don't have the time / want to put myself learning matplotlib or other plotting tools.

[–] [email protected] 1 points 1 year ago

One could run gnuplot in mind to draw a graph with very limited lines, but impossible to get such a job done with large amount of matplotlib's code.