Robert

Royal Institute of Technology

Last seen: meer dan 4 jaar ago | Active since 2011

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PhD-student working with fiber laser and amplifiers at the Laser Physics group at the Royal Institute of Technology in Stockholm, Sweden.

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Answered
How to draw an arrow using non normalized coordinates?
I wanted to do something similar, here's an example that adds a double arrow between the x-values 1 and 5 with y-values 5 in a s...

ongeveer 6 jaar ago | 1

Question

Remidies for changed values in a vector as a result of fftshift?
Hi, While rewriting a script, I noticed that the sum of a vector changes if ifftshift/fftshift has been carried out. Take the...

meer dan 8 jaar ago | 1 answer | 0

1

answer

Answered
Inconsistent solution from a symbolic equation?
I copied the solutions into mathematica and went through all the terms (which is a lot easier since you can display the equation...

bijna 9 jaar ago | 0

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Answered
Inconsistent solution from a symbolic equation?
Hi Steven, Thank you for the reply. I suppose that this function essentially does the same as checking whether aa(1)+aa(2)=0 ...

bijna 9 jaar ago | 0

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Inconsistent solution from a symbolic equation?
Hi, I'm solving a system of some rather lengthy equations using the solve function after setting up the equations using symbo...

bijna 9 jaar ago | 4 answers | 0

4

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Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

ongeveer 9 jaar ago

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Peculiar behavior regarding matrix operations
Hi, I just discovered something that I found really weird when I was working with some element-wise multiplication and divisi...

meer dan 9 jaar ago | 1 answer | 0

1

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Answered
oscillating phases when using fft and ifft
Hi Cindy, The use of fftshift after taking the fft is actually not the correct way of doing it (if you're starting with a fun...

meer dan 10 jaar ago | 0

Question

oscillating phases when using fft and ifft
Hi, I noticed that I get oscillations in the phases of the fourier transform of my gaussian function and also in the inverse ...

meer dan 10 jaar ago | 2 answers | 0

2

answers

Question

All pass filter design trouble
Hi, I´ve constructed a complementary filter that is filtering the difference between two signals. After passage through the com...

meer dan 14 jaar ago | 0 answers | 0

0

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A question about the freqz function
Hi, My name is Robert and I´m having a minor problem with the freqz function in MATLAB. I´m using it to get the frequency res...

meer dan 14 jaar ago | 1 answer | 0

1

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