dieter_hermann

joined 2 years ago
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1
Ist die Verbindungssuche der LVB jetzt ganz kaputt? (www.l.de)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
0 comments fedilink
 

Ich habe bereits festgestellt, dass die Verbindungssuche auf https://www.l.de/verkehrsbetriebe/ teilweise Verbindungen anzeigt, die es gar nicht gibt, aber nun kann ich die Verbindungssuche gar nicht mehr verwenden. Ich sehe unter "Verbindungsauskunft" ein leeres Eingabefeld, aber wenn ich darauf klicke passiert nichts.

Kann jemand das Problem nachstellen, oder stell' ich mich nur blöd an?

Update: Jetzt funktioniert scheinbar wieder alles. Es muss eine temporäre Störung gewesen sein.

1
Is there any mailcap tool on OpenBSD? (feddit.de)
submitted 2 years ago* (last edited 2 years ago) by [email protected] to c/[email protected]
0 comments fedilink
 

I'm looking for a tool, that allows me to open different files with an appropriate tool automatically. I've got xdg-open available on my system, but it seems quite cumbersome to configure. Thus I was looking for an alternative.

The mailcap format seems to be somewhat common and easy to use, but pkg_info -Q mailcap returned no results. Is there any tool that supports mailcap files in the ports, that I missed?

If there is none: Is there a good alternative, that you use?

What is so special about the natural logarithm? What is it good for? in c/[email protected]
[–] [email protected] 2 points 2 years ago* (last edited 2 years ago)

Thanks. I have tried following the first article, but I didn't really get the point of the talk about "perfect compound growth". Maybe I'll try reading the article in smaller pieces over a view days, so that I can internalize each step of the explanation.

What is so special about the natural logarithm? What is it good for? in c/[email protected]
[–] [email protected] 2 points 2 years ago

The simple derivative really is nice, thanks for pointing this out!

What is so special about the natural logarithm? What is it good for? in c/[email protected]
[–] [email protected] 2 points 2 years ago

Your explanation makes a lot of sense to me! I didn't know that exp'(x) = exp(x), but can see how this could be an interesting property and in turn makes ln interesting.

You saying, that it often doesn't matter which logarithm is used, made me check and realize that log_a(x)/log_a(y) is the same as log_b(x)/log_b(y). Thus I understand that it really doesn't make a difference which logarithm is used when "comparing the magnitude" (not sure if this is the right term) of numbers.

I feel like I have a much better understanding of ln now. I'll assume that the base of an algorithm is often basically a random choice and base e is often used because of its "interesting trivia".

Thanks a lot!

18
What is so special about the natural logarithm? What is it good for? (feddit.de)
 

I understand that log2 is useful for informatics, e.g. to determine how many bits I need to represent a given number. I understand that log10 is useful to determine the order of magnitude of numbers.

However, I'm having trouble understanding what makes ln interesting. It seems like it's used a lot, but to me it just looks like a logarithm with a very weird base. What are the uses for this logarithm?