2,739 reputation
2336
bio website ephorie.de
location Germany
age 44
visits member for 4 years, 6 months
seen 8 hours ago

just an amateur fascinated by math


Jun
27
comment Proof for law of complex exponents using only differential equation
This looks really nice - thank you! One thing I don't understand: "Using the initial condition $e^0=1$ we find that [...] Now let $z=a$" - doesn't this say that $z=a=0$ because $e^ze^{c-z}=e^c$ is only true when $z=0$?
Jun
26
revised Proof for law of complex exponents using only differential equation
added initial conditions
Jun
26
asked Proof for law of complex exponents using only differential equation
Jun
26
accepted Example of eigenvectors in different bases (follow-up question)
Jun
25
comment Example of eigenvectors in different bases (follow-up question)
...I read through your answer again and I think the first part will be affected by the typo but the more general and important second part shouldn't be - thank you again!
Jun
25
comment Example of eigenvectors in different bases (follow-up question)
...I read through your answer again and I think it shouldn't be affected by the typo - Thank you in any case!
Jun
25
comment Example of eigenvectors in different bases (follow-up question)
@user6312: I think this was due to my unfortunate typo (see my edit) - I am so sorry!
Jun
25
comment Example of eigenvectors in different bases (follow-up question)
I am so sorry - I just found a typo in matrix A - does this change your answer? Sorry for the inconvenience!
Jun
25
comment Example of eigenvectors in different bases (follow-up question)
I am really, really sorry - there was a typo in the first matrix - does this change your answer? Sorry for the inconvenience!
Jun
25
revised Example of eigenvectors in different bases (follow-up question)
typo; added 11 characters in body
Jun
25
accepted Connection between eigenvalues and eigenvectors of a matrix in different bases
Jun
24
revised Connection between eigenvalues and eigenvectors of a matrix in different bases
link to follow-up question
Jun
24
asked Example of eigenvectors in different bases (follow-up question)
Jun
24
comment Connection between eigenvalues and eigenvectors of a matrix in different bases
@Thank you, user6312!
Jun
24
comment Connection between eigenvalues and eigenvectors of a matrix in different bases
I especially like your "play-in-a-different-language" example :-)
Jun
24
comment Connection between eigenvalues and eigenvectors of a matrix in different bases
Thank you - I looked at the source code and it seems as though the number and position of the dollar-signs don't match, but I am no latex-expert. Perhaps somebody with some expertise can have a look...
Jun
24
comment Connection between eigenvalues and eigenvectors of a matrix in different bases
@user6312: Thank you so far - could you elaborate on this and give sth proofy? ...and a simple example if possible?
Jun
24
revised Connection between eigenvalues and eigenvectors of a matrix in different bases
added 89 characters in body
Jun
24
asked Connection between eigenvalues and eigenvectors of a matrix in different bases
Jun
24
answered Is Fourier Series an “Inverse” of Taylor Series