Let's test the post with latex

Let me make sure I am not crazy, latex works! $$\phi(x,y)$$

This was a test for not inline text, what happens if I want it inline? $\phi(x,y)$.

now we are going to check how python code looks like

class test():
	def __init__(self,N):
		self.N=N

	def star(self,A,B):
		self.star=A+B

now we are going to check how matlab code looks like

N=64
x=randn(N,1)
X=fft(x)

plot(fftshift(X))

All good… can we try the blockquotes?

Hej, I wrote you an email 10 years ago… still waiting for a reply!

Ok, now we put an horizontal line

Nice!

*** can we put videos?