fexl

10 ms·

1.
by fexl 3y ago
I've noticed that LED bulb packages say they'll last several years, but so many of them die after just a year or so. I should start tracking this precisely, but I've just gotten the sense that they often die prematurely.
2.
by fexl 5y ago
I got that impression too, but it does say "But the path he has chosen involves one of the toughest problems in battery science, which is how to make an anode out of pure lithium or sodium metal." I suppose that implies he's
3.
by fexl 5y ago
"When the battery is discharging ... positively charged ions shuttle from the anode to the cathode" I thought that electrons shuttle from the anode to the cathode.
4.
by fexl 5y ago
I never understood the animus against saving. Saving just means you have produced more than you consumed, and I admire that.
5.
Parsing in Fexl(fexl.com)
1 points by fexl 7y ago|0 comments
6.
This is the functional language I use for real work(github.com)
1 points by fexl 10y ago|0 comments
7.
by fexl 11y ago
I opened the "Summary for Policymakers" listed right on their home page, and it popped up a PDF titled "AR5_SYR_FINAL_SPM-1.pdf". That's where I searched on the word "vapor" and found only one occurrence
8.
by fexl 11y ago
Yes I understand that effect, and it makes sense that higher temperatures might cause more CO2 to come out of solution, as in a bottle of soda going flat more quickly at room temperature than in the refrigerator. That said, I am not certa
9.
by fexl 11y ago
I searched on the words "vapor" and "vapour" and found nothing. I also search on the word "water" and found nothing relevant to my question.
10.
by fexl 11y ago
Sorry, I can't click through to that article -- when I dismiss the pop-up, the tantalizing "Climate Shock" headline disappears. I do say that all humans require energy to survive, and more efficient forms of energy require ca
11.
by fexl 11y ago
Are there any data on water vapor concentrations? I ask that because I have read that the contribution of water vapor to the greenhouse effect is perhaps two to four times greater than CO2.
12.
by fexl 11y ago
Likely yes, but please be careful that the remedies do not cause more severe difficulties than the problem itself.
13.
by fexl 11y ago
Sorry I deleted my comment out from under your feet. He was responding to my exclamation about the large spike upward in CO2 levels on that first graph on the EPA site. After posting it, I deleted it because I answered my own question.
14.
by fexl 11y ago
http://www.ncdc.noaa.gov/paleo/globalwarming/temperature-cha... There you can see a strong correlation between CO2 levels and temperature going back nearly half a million years. Teasing out cause and effect is th
15.
by fexl 11y ago
It's bizarre that it would be illegal. For all I know, it might be illegal in Peru too, but it happens, and it works pretty well. In Lima, the spotters are known as "dateros" (loosely, "data wrangler"). The bus dr
16.
by fexl 11y ago
In Lima Peru the bus drivers pay spotters on the street who report flow conditions by cell phone.
17.
by fexl 11y ago
Yes, you're talking about 4.7 cubic feet of gold there. Buy the island and then you'll have a place to store 1 cubic foot of gold, to pay your routine expenses.
18.
by fexl 11y ago
Some have already closed that exit, banning the storage of cash in their boxes. They want to keep your funds available for negative interest rates and possible bail-ins.
19.
Symbol resolution in Fexl is now highly simplified and accelerated(fexl.com)
2 points by fexl 11y ago|0 comments
20.
Resolved dilemma between two methods of functional evaluation(fexl.com)
1 points by fexl 12y ago|0 comments
21.
by fexl 12y ago
Not only that, they took a lot of money in exchange for that "free" eduction -- often from people who didn't even use the service. So no, they don't have a "stake" in the products of anyone's mind. That&
22.
by fexl 12y ago
I sing the praise of the rarely mentioned genius Moses Schönfinkel, who invented combinatorial logic.
23.
by fexl 12y ago
We traveled to Lima a few years ago, and the variety and quality of the food in the grocery stores and restaurants was astounding. For the equivalent of 2 to 5 bucks, you could get a lunch that would cost easily six times that in the U.S.
24.
by fexl 12y ago
OK, I went ahead and revived the "==" syntax for recursive definitions, so you don't have to use '@' (fixpoint) explicitly. https://github.com/chkoreff/Fexl/commit/57b841cb6c2347cad147
25.
by fexl 12y ago
Postscript: You might well ask why not just use "=" only, and assume that all definitions are potentially self-referencing? That's a non-starter because I find that redefinition is the more common intent: \x=4
26.
by fexl 12y ago
True, I could implement it in terms of direct self-reference. At one point I used the "==" syntax for just that purpose: \append==(\x\y x y \h\t [h; append t y]) Maybe I should resurrect that syntax option. :) It was tr
27.
by fexl 12y ago
I do use it directly. For example in Fexl I define the append function for lists as: \append=(@\append\x\y x y \h\t [h; append t y]) Where '@' is the Y-combinator. Note that there's no direct self-reference with the
28.
by fexl 12y ago
Fexl is a functional programming language. I used the term "functional evaluation" because Fexl evaluates functions. Here are a few code samples: http://rosettacode.org/wiki/99_Bottles_of_Beer#Fexl http:&#x
29.
by fexl 12y ago
This version handles syntax errors, out of memory errors, and out of time errors, propagating them upward instead of halting with an error message, and reporting them in an orderly fashion at the end of the main program. Now the only calls
30.
Fexl – Highly robust functional evaluation(github.com)
10 points by fexl 12y ago|3 comments

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