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jonsen

2,274 karma · joined June 26, 2008

Gmail: jonn point jonsen
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jonsen··on Ask HN: Advice on starting a YouTube channel?
Also speaking slower gives the listener time to think about what you say.
jonsen··on Implementing Cosine in C from Scratch (2020)
Not even a single hit on bookfinder.com!
jonsen··on On understanding data abstraction, revisited (2009) [pdf]
I don't think he can. As he says towards the end of the introduction: "One source of unease is that the fundamental distinctions are obscured, but not eliminated, in real programming languages."
jonsen··on The Rise and Fall of Getting Things Done (2020)
Education, in the broadest sense, is what makes people think they want what they want.
jonsen··on Children's Games (Bruegel)
One of my classmates in elementary school lived close to a closed factory. The backyard with lot of scrap was a wonderful adventurous playground. The city train station was further down the street and the trains passed just behind the fence furthest in the back. When someone heard a train approaching he would yell "Train's coming!". Whatever play would cease immediately and we all ran to pick up one of our poops on a stick and line up at the fence. Great was the joy when one of us hit a window.
jonsen··on Writing summaries is more important than reading more books
Second link of yours doesn't work for me.

I have at least a few Post-it notes in every book. Some sitting there for thirty years or more. Never experienced any problem. Always used the real Post-it from 3M.

jonsen··on Writing summaries is more important than reading more books
"Fictional narrative: Fictionality is most commonly cited as distinguishing novels from historiography. However this can be a problematic criterion. ... Several novels, for example Ông cố vấn written by Hữu Mai, were designed to be and defined as a "non-fiction" novel which purposefully recorded historical facts in the form of a novel.":

https://en.m.wikipedia.org/wiki/Novel#Defining_the_genre

jonsen··on Writing summaries is more important than reading more books
Could be an autobiography.
jonsen··on Free42 – An HP-42S Calculator Simulator
Thank you for the plus hint. Very nice. Worth the price.
jonsen··on Delphi 11 and C++Builder 11 Community Editions Released
> It's object pascal, dating to before there were any other object pascals.

"The language was originally developed by Apple Computer":

https://en.m.wikipedia.org/wiki/Object_Pascal

jonsen··on Tell HN: iOS converts units for highlighted text
Both of 'l' and 'L' are acceptable as unit abbreviations for litre:

https://en.m.wikipedia.org/wiki/Non-SI_units_mentioned_in_th...

jonsen··on Farouk al Kasim saved Norway from its oil (2014)
If there's will and ability to pay back.
jonsen··on Why did Prolog lose steam? (2010)
"BNF was created by Naur," and "the guy who invented FORTRAN"
jonsen··on Proposed dam to protect NL, DE, DK, SE from rising sea levels
More water in seas does not mean that sea level will rise evenly everywhere. I've heard that the relocation of water masses will in fact make sea level lower somewhere. Also landmasses will rise and sink. Are there any serious calculations of the details?
jonsen··on DDRamDisk: RAM disk, a disk based on RAM memory chips
> I built a 128KB memory board with bank selection logic then wrote a driver for the Flex OS (6809) to make that memory appear like a disk.

Oy! I could have written exactly that. What a coincidence :-) I also wouldn't claim invention. Maybe I heard of it, but I'd say the idea is pretty obvious. We made it possible for Flex to run to programs simultaneously and also do print spooling. (That's when I bought an HP 16C. Great help. Still have it.)

jonsen··on How to send a photo around the world in 1926 (2013)
For some interpretation of "low".
jonsen··on How to send a photo around the world in 1926 (2013)
"...first commercial telefax service between Paris and Lyon in 1865, some 11 years before the invention of the telephone":

https://en.m.wikipedia.org/wiki/Fax#Wire_transmission

jonsen··on Mechanical aircraft weight and balance computer using whippletrees
Bakelite, probably:

https://en.m.wikipedia.org/wiki/Bakelite#Collectible_status

jonsen··on Ask Dang: What tools do you use for moderating HN?
Even moderators need some time off.
jonsen··on Why start at x, y, z? A collection of mathematical ...
And THE THE thing thing is bad teaching. If you fail to establish a sound basis of the language used to convey meaning the outcome is doomed to be miserable.
jonsen··on Why start at x, y, z? A collection of mathematical ...
> Reverse Polish Notation: The expression ( x − 2 ) ( x − 1 ) would be written instead × − x 2 − x 1 , or something like that.

This is not reverse Polish notation.

It's Polish notation; parentheses free prefix notation.

The reverse would be x 2 - x 1 - ×.

jonsen··on Text Compression Is Equivalent to AI (2009)
What do you mean by "on their own"? I would bet that the first human uttering that sentence had several observations of cats in the dark in their training set.
jonsen··on Cause of Fatal 2021 Tesla Wreck Was “Excessive Speed” and “Alcohol Intoxication”
Artificial Ingestion?
jonsen··on Ask HN: A programming language without if then else?
Thanks!
jonsen··on Ask HN: A programming language without if then else?
I'm pretty sure Algol (1958) had full structured programming.
jonsen··on Ask HN: Why are toggle switches replacing checkboxes? Isn't on/off less obvious?
Both switches should be turned 90 degrees and move horizontally.
jonsen··on Burn-out, daunting work, overstretched, and it's just too much
The percentage of employed unproductive is way higher.
jonsen··on Loneliness is a measure of self-understanding
Many thinks traumas in adult life are linked to childhood addition.
jonsen··on Wobbly clock
There are no additional pulses. Only minute pulses. It's a motor driving the second hand. The motor starts by the minute pulse and stops itself when reaching the top.
jonsen··on The time I yoga-balled an Apple store employee
Also gratifying to ponder what makes a yoga ball fly upwards that high just from someone falling off. Never seen anything like that.
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