41–50 of 134 posts
J in its simplest use acts just like a desk calculator.
If you are working at a terminal, type the following input, pressing the “enter” key after each line :
3+4
5*20
I love the julia language. I would love to use julia as a command line calculator. Unfortunately, starting the interpreter is excruciatingly slow, an order of magnitude slower than octave or python (and several orders of magnitude slower than bc or dc).
I use python CLI for exactly the same :)
I may switch to Julia, though. I really prefer the language. Wish I could use it at work.
Since this is a calculator topic, I'd like request your input on which calculators you use. I use the Emacs calculator (M-x calc) and XCalc ( http://www.tordivel.no/xcalc/ ) as I like to use RPN calculators. The Windows 10 calculator is painful and slow. XCalc has a mini mode, where it will sit as a small, single line without distracting you too much. I like that feature very much. One thing with Emacs is that I forg…
The non-RPN one that I use the most is SpeedCrunch (http://speedcrunch.org/), Insect (https://github.com/sharkdp/insect/) and Frink (http://frinklang.org/). All have unit conversion too.
I love the julia language. I would love to use julia as a command line calculator. Unfortunately, starting the interpreter is excruciatingly slow, an order of magnitude slower than octave or python (and several orders of magnitude slower than bc or dc).
I suspect that the author starts the julia REPL up in the morning and leaves is running all day, so startup time would not be important.
I suppose Snail could be used in a same way (https://github.com/gcv/julia-snail)
Since this is a calculator topic, I'd like request your input on which calculators you use. I use the Emacs calculator (M-x calc) and XCalc ( http://www.tordivel.no/xcalc/ ) as I like to use RPN calculators. The Windows 10 calculator is painful and slow. XCalc has a mini mode, where it will sit as a small, single line without distracting you too much. I like that feature very much. One thing with Emacs is that I forg…
During grad school, I went through a period of trying many different GUI based calculators, until I realized what I really wanted was a language's repl.
The downside: it’s not free (as in beer or speech).
I really wish there was a language based on Swift that would include most of the nice language, REPL and library characteristics of Julia (and perhaps few from Dart). That would get really close to a "perfect language" for me. Overall I like Julia - and use it as a CLI calculator as well - but there are several things that prevent it from being a good general purpose language: - OOP support is "meh". - str.parse(Int)…
> str.parse(Int).abs is more readable than abs(parse(Int, str)). Oof, beauty is in the eye of the beholder. I appreciate the regularity of abs(parse(Int, str)) rather than remember what to call as a function, and what must be called as a method of some object. Of course my preference would be for a syntax that has the added benefit of getting rid of extraneous commas: (abs (parse int str)) > 1-based indexing Again, b…
I guess that's true, from my experience Julia's way is simply less readable. It also make IDE autocomplete much more useful.
> A lot of relevant math is 1-indexed.
Initially I kind of liked it and disagreed with people who didn't. But as I used Julia over time, I regularly encountered situations in which it was really frustrating and enacted a mental tax. The opposite never happens.
Earlier quoted context omitted.
This is simply not true. I have a 3 year old mac, and this is doing simple arithmetic (including starting and exiting Julia). 0.14 seconds user time. $ time ~/Desktop/Julia_Releases/Julia-1.4.app/Contents/Resources/julia/bin/julia -E "1+1" 2 ~/Desktop/Julia_Releases/Julia-1.4.app/Contents/Resources/julia/bin/julia -E 0.14s user 0.08s system 65% cpu 0.342 total In about 0.5 seconds, I can actually do something non-tri…
By half a second I obviously didn't mean 0.5 seconds but rather a very short duration that I didn't bother to measure. Edit: Now I bothered to measure. You were saying? ~ time julia -E "1+1" 2 julia -E "1+1" 0,59s user 0,14s system 153% cpu 0,476 total ~ time julia -E "sum(sin.(rand(1000000)))" 459807.21199623536 julia -E "sum(sin.(rand(1000000)))" 1,01s user 0,17s system 125% cpu 0,948 total
My main point was that while half a second (~0.5s) is perceptible startup time, ~0.1s is not. Is it a much older system than mine? I have a 2.3GHz Core i5 from about 2017.
Since this is a calculator topic, I'd like request your input on which calculators you use. I use the Emacs calculator (M-x calc) and XCalc ( http://www.tordivel.no/xcalc/ ) as I like to use RPN calculators. The Windows 10 calculator is painful and slow. XCalc has a mini mode, where it will sit as a small, single line without distracting you too much. I like that feature very much. One thing with Emacs is that I forg…