reduce-algebra
SIunits
reduce-algebra | SIunits | |
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3 | 1 | |
30 | 2 | |
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9.3 | 0.0 | |
5 days ago | 5 months ago | |
Scheme | ||
GNU General Public License v3.0 or later | GNU General Public License v3.0 only |
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reduce-algebra
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An Apologia of Lazy Evaluation
Usually the arguments are a) it provides runtime access to the source (which for example is useful in R), b) runtime introspection is easier to understand (for the proponents) and c) macros are too static (they want more flexibility at runtime). For example authors of the REDUCE computer algebra system disliked Common Lisp for the lack of FEXPRs and that's why they stayed away from it: https://reduce-algebra.sourceforge.io/ .
> The languages you mention probably
No, see above.
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Maxima: A computer algebra system written in Common Lisp
Reduce is another lisp based computer algebra system from the prehistoric times, now open sourced.
https://en.wikipedia.org/wiki/Reduce_(computer_algebra_syste...
https://reduce-algebra.sourceforge.io/
I paid money for a Reduce release for RISCOS back in the last ice age. I recollect having to register my licence with the Rand Corporation for some reason.
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A Modern Fortran Scientific Programming Ecosystem
I idly wonder how these compare to the arbitrary-precision implementations in REDUCE (https://github.com/reduce-algebra/reduce-algebra/blob/master...) - written mostly by me, 30 years ago in the unusual, Lisp-based but largely procedural, language of REDUCE. Can't remember much about the subject now.
The citations in the Julia source file are certainly newer - Abramowitz and Stegun was basically all I had.
I think the REDUCE functions were considered quite fast (for higher precision) at the time, but it was certainly true that they weren't tested as thoroughly as would be the norm now.
SIunits
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Ask HN: Did TeXmacs' doubly misleading name hold it back for 20 years?
Packages for chemistry are useful, even if I don't use them myself. Also siunitx needs yet a TeXmacs equivalent (I think https://github.com/pireddag/SIunits/tree/simple is not yet good enough)
What are some alternatives?
maxima-client - Maxima client
notes - Notes about TeXmacs
symengine - SymEngine is a fast symbolic manipulation library, written in C++
mogan - Mogan STEM Suite (based on GNU TeXmacs): Enjoy exploring science and technology!
Bessels.jl - Bessel functions for real arguments and orders
LLDB-TeXmacs-Pretty-Printer - LLDB TeXmacs Pretty Printer
stdlib - Fortran Standard Library
projects
maxima-jupyter - A Maxima kernel for Jupyter, based on CL-Jupyter (Common Lisp kernel)
melpa - Recipes and build machinery for the biggest Emacs package repo
hsluv - Human-friendly HSL, website and math