Dubmove

Inspired by another poll about deriving the Euler Lagrange equations

These random unannounced usage resets have been quite a blessing. But I am noticing they also reduced the amount of credits one effectively has per week. It's of course in their right to do so, but some kind of transparency would be nice here. It's of course hard to really prove that but based on the amount of credits have gone for tokens that have been spend in a certain time, I see a significant drop in comparison to the beginning of the week and last weekend

Allgemeinhin werden Smalltalk zum Wetter ja immer als Eingeständnis angesehen, dass man sich nichts zu erzählen hat, und man vielleicht auch einfach ein langweiliger Mensch. Gerade hatte ich allerdings nen netten Smalltalk mit meiner Mitbewohnerin, das mit einem Kommentar zum Wetter anfing. Schnell wechselte das allerdings zu den Wochenendplänen der letzten und nächsten Woche.

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Ich hab kurz darüber reflektiert und gemerkt, dass Wetter als Gesprächsthema einen so schlechten Ruf hat, weil wir immer weniger raus gehen .

I just saw the current situation with the ad and the soon to be implemented solution, also the variable premium feature. I was always happy with the dev's approach to advertisement and I'm sure I'm continue to be happy with it.

I would like to make a one-time donation for the contineous efforts made. I guess I could indirectly do it via bumping up the variable premium tier, but I'd rather make a payment without giving 15% of it to Google.

I didn't find an option for donations on the website, so I thought I'd just ask here.

The difference between a hardlink and a copy is that a copy actually dublicates the data of a file and you end up with the data twice on your filesystem.

That's useful if you need the data available on two different devices or if you want to modify the file. But often i just want to copy some config file.

Is there any reason to not just make a hardlink?

I have a real valued nxm matrix Q with n>m. Now I'm looking for the matrix R and vector x, such that Rx = 0 and the l2 norm ||Q - R||^2 becomes minimal.

So far I attempted to solve it for the simple case of m=2 and ended up with R and n being without loss of generality determined by some parameter wherein that parameter is one of the roots of some polynomial of order 3. The coefficients of the polynomial are some combination of q1^(2), q2^(2), and q1q2, with Q=(q1, q2). However, I see no way to generalize that to arbitrary dimensions m. Also the fact that I somehow ended up with 3rd and 4th degree Polynomials tells me I'm doing something wrong or at least overly complicated

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