I've always wanted to read #SICP and so I've started reading the Unofficial Texinfo Format manual in #emacs. Here is a fun excerpt:
> The UTF is easier to search than the HTML format. It is also much
> more accessible to people running on modest computers, such as donated
> '386-based PCs. A 386 can, in theory, run Linux, Emacs, and a Scheme
> interpreter simultaneously, but most 386s probably can't also run both
> Netscape and the necessary X Window System without prematurely
> introducing budding young underfunded hackers to the concept of "thrashing".
> UTF can also fit uncompressed on a 1.44MB floppy diskette, which may
> come in handy for installing UTF on PCs that do not have Internet or
> LAN access.
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Nowadays, I rarely buy printed books, even more rarely ones on computer science topics. Very few CS books deserve to be bought, and for those, the printed edition is a must because they are holy like the Bible. They need to be touched, meditated upon, read, and read again.
#SICP is one of them, and I finally got it.
Done with #SICP 1.20 and I remind myself once again that I need to pick up the pace, it’s really hard to remember stuff after a while away. Well, I do what I can 
Patiently waiting for a C++ version of SICP.
#books #computerscience #cpp #lisp #programming #scheme #sicp
Bored -- hey why not go through #SICP, fuck it why not. #doomemacs using geiser-guile mode.
Finally done with #SICP 1.19, it took me a few weeks to sit down and properly work it through! I need to do these a bit faster, otherwise I'm still gonna be on chapter 1 by the end of the year.
GIF
Love me some computer science with my morning natto. #SICP exercise 1.17 done.
Finished #SICP exercise 1.16, took me a couple of weeks I feel? I initially felt really stuck, but being patient and making sure I understand each word has helped, to the point that I was able to reason about it without having the book in front of me, while driving or doing chores. Very cool!
Kompotov Programerski Bralni Krožek #23
March 27, 2025, 6:45:00 PM CET - GMT+1 - Centralna tehniška knjižnica, 1000, Ljubljana, Sloveniahttps://dogodki.kompot.si/events/48a0ba15-7600-4af9-a235-66a69a0a0e6f
Kompotov Programerski Bralni Krožek #22
March 13, 2025, 6:45:00 PM CET - GMT+1 - Centralna tehniška knjižnica, 1000, Ljubljana, Sloveniahttps://dogodki.kompot.si/events/85907482-ebad-4f5d-8eef-d5d736ed405d
Kompotov Programerski Bralni Krožek #21
February 27, 2025, 6:45:00 PM CET - GMT+1 - Centralna tehniška knjižnica, 1000, Ljubljana, Sloveniahttps://dogodki.kompot.si/events/08399f25-9f96-42d9-bcc0-823fea380611
Kompotov Programerski Bralni Krožek #20
February 13, 2025, 6:45:00 PM CET - GMT+1 - Centralna tehniška knjižnica, 1000, Ljubljana, Sloveniahttps://dogodki.kompot.si/events/1fe6f607-d3e2-42bc-be86-ae2174e620cc
Done with #SICP exercise 1.13. Another hard one for me, this was way more math than I've done at any point since high school. Wouldn't have managed without outside help!
GIF
#Ruby code-along with the #JavaScript edition of The Structure and Interpretation of Computer Programs be like...
![A screenshot of a terminal showing the following.
irb(main):026> average = ->(x, y) { (x + y) / 2.0 }
=> #<Proc:0x000000011be08820 (irb):26 (lambda)>
irb(main):027> improve = ->(guess, x) { average[guess, x / guess] }
=> #<Proc:0x000000011bd6b408 (irb):27 (lambda)>
irb(main):028> square = ->(x) { x * x }
=> #<Proc:0x000000011be29d18 (irb):28 (lambda)>
irb(main):029> abs = ->(x) { x >= 0 ? x : -x }
=> #<Proc:0x000000011bd26808 (irb):29 (lambda)>
irb(main):030> is_good_enough = ->(guess, x) { abs[square[guess] - x] < 0.001 }
=> #<Proc:0x000000010099eea8 (irb):30 (lambda)>
irb(main):031> sqrt_iter = ->(guess, x) { is_good_enough[guess, x] ? guess : sqrt_iter[improve[guess, x], x] }
=> #<Proc:0x000000011bd2ad40 (irb):31 (lambda)>
irb(main):032> sqrt = ->(x) { sqrt_iter[1, x] }
=> #<Proc:0x00000001009f78f0 (irb):32 (lambda)>
irb(main):033> sqrt[9]
=> 3.00009155413138
irb(main):034> sqrt[100 + 37]
=> 11.704699917758145
irb(main):035> sqrt[sqrt[2] + sqrt[3]]
=> 1.7739279023207892
irb(main):036> square[sqrt[1000]]
=> 1000.000369924366
irb(main):037>](https://cdn.masto.host/rubysocial/media_attachments/files/113/938/233/114/653/262/original/224f4c5919eb8fa4.png "A screenshot of a terminal showing the following.
irb(main):026> average = ->(x, y) { (x + y) / 2.0 }
=> #<Proc:0x000000011be08820 (irb):26 (lambda)>
irb(main):027> improve = ->(guess, x) { average[guess, x / guess] }
=> #<Proc:0x000000011bd6b408 (irb):27 (lambda)>
irb(main):028> square = ->(x) { x * x }
=> #<Proc:0x000000011be29d18 (irb):28 (lambda)>
irb(main):029> abs = ->(x) { x >= 0 ? x : -x }
=> #<Proc:0x000000011bd26808 (irb):29 (lambda)>
irb(main):030> is_good_enough = ->(guess, x) { abs[square[guess] - x] < 0.001 }
=> #<Proc:0x000000010099eea8 (irb):30 (lambda)>
irb(main):031> sqrt_iter = ->(guess, x) { is_good_enough[guess, x] ? guess : sqrt_iter[improve[guess, x], x] }
=> #<Proc:0x000000011bd2ad40 (irb):31 (lambda)>
irb(main):032> sqrt = ->(x) { sqrt_iter[1, x] }
=> #<Proc:0x00000001009f78f0 (irb):32 (lambda)>
irb(main):033> sqrt[9]
=> 3.00009155413138
irb(main):034> sqrt[100 + 37]
=> 11.704699917758145
irb(main):035> sqrt[sqrt[2] + sqrt[3]]
=> 1.7739279023207892
irb(main):036> square[sqrt[1000]]
=> 1000.000369924366
irb(main):037>")