this post was submitted on 17 Sep 2023
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[–] [email protected] 43 points 2 years ago* (last edited 2 years ago) (6 children)

I was a bit disappointed to learn that math-related Python packages don't seem to have an ln function. They all use log for the natural log and also have a log10.

[–] Afrazzle 22 points 2 years ago (1 children)

Base e is considered the natural logarithm and is what you'll get if you call log in most programming languages targeted at math.

[–] [email protected] 3 points 2 years ago (1 children)

Why is that, off the top of my head I don't remember seeing base e logarithms too often, why are they so important?

[–] [email protected] 4 points 2 years ago* (last edited 2 years ago)

They get used all over especially in differential equations.

Log10 basically only comes up in statistics for doing a log plot in base 10.

Basically high school math won't use the natural log much, but once you hit university higher level math it becomes apparent it's the one everyone actually uses regularly.

[–] [email protected] 11 points 2 years ago

You know what's even more dissapointing? bc - arbitrary precision calculator for linux shell uses 'l' for natural log, just a single letter.
And there's no other log function, so when you need logx(y) you write: ''l(y)/l(x)".

[–] [email protected] 7 points 2 years ago

Well that's annoying..

[–] [email protected] 5 points 2 years ago

Make your own package, or just macro that shit.

[–] [email protected] 4 points 2 years ago

That’s because mathematicians use log for the natural logarithm. Log base 10 would be log_10

[–] [email protected] 4 points 2 years ago (1 children)

even Matlab suffers from this

[–] [email protected] 7 points 2 years ago (1 children)
[–] [email protected] 1 points 2 years ago (1 children)

Yes? Suffer -> Suffering / Suffers ? Is this not correct?