Recent content by Herbststurm

@jedishrfu You are totally right. With x<5 the program works correct. Now it makes sense. But I have to say I am a little sad that I can't figure this out by printing the variables step by step :( I think I will write little programs where I know exactly what's happening and make explicit error...

I have to learn a lot and will spend more time with this. I understand what you mean and tried it. Can you give me a hint what could be wrong in my code? For someone who knows C++ this should be an easy beginners question?

Hi I did exactly this but can't figure it out. I guess there must be a problem in my coding logic?

Hello I found a bug in my code and can't figuring out the error. I tried debugging by showing the output of each variable step by step but I can't find my error. Here is what I have and what I want to do: I have a matrix A: 0000 0101 1010 1111 And I have a matrix B: 10000 21000 30100 41100...

Hello I am interested in the physics of this system: In the second stock of a building is a kitchen with two doors. One door is to a balcony and this door dos not close properly. The second door goes into a floor of the house. I like to know what physically happens in the following objection...

https://www.youtube.com/watch?v=4bekQU9l8hk

Hello, just as a notice: Sometimes we are interested in the complex eigenvalues of the not hermitian Hamilton operator, because those correspond to the poles of the function you obtain by Fourier transform the time evolution operator. By getting this complex eigenvalues, you directly get the...

Hi, is it possible to use the TeX Editor external? A link which leads to the TeX Editor? Thanks greetings

Okay, I could do this with the forum :) BUT: I could not write my TeX code because this stupid editors shows old things I wrote a long time ago if I go to preview? What the **** happened there?

Hi, I want to write some articles in a blog. The blog should be a kind of online diary for my proceedings and cognitions in physics and math. I found a lot of blogs but without a directly latex support :( I know I could work with images, like creating the TeX somewhere else and...

Now it is clear. I forgot Biot-Savarts law but we discussed it in lecture. We are using the cgs system from Gauß. I will calculate it and post my solution. thanks and greetings :)

Hello, thanks for your help. I have two questions about that: 1.) Where does this formula of the magnetic field come from? 2.) Why is the given formula wrong and your formula is correct? What is the reason that the given formula should be wrong? Thanks Greetings

Hi, a homogeneous charged hollow sphere with the radius R and the complete charge Q is rotating with constant angular velocity omega around a fixed axle. How to calculate the magnetic field at the north pole? I have this hints: The ring current I with the radius small r excites on...

Hello, do you know any websites on the internet with exersices and solutions in theoretical physics? No matter which Topic. Mathematical methods, Mechanics, Elektrodynamics, Quantum Mechanics,... thanks greetings

Hi, thanks for help. Maybe it is a good idea if I quote the exercise: Find a vector space V and a real sub vector space U in V such that a linear map f from U to V is isomorph. Specify the isomorphism and proof you statement. That are all informations in the exercise. greetings