1,400 reputation
516
bio website quantum.at
location Vienna, Austria
age
visits member for 2 years, 9 months
seen 1 min ago

PhD student in Theoretical Physics

Research interests include Quantum Optomechanics and Quantum Optics


Nov
20
comment Why does LyapunovSolve solve non-standard form?
I agree that this is a little strange, as with this definition Q will normally not be positive definite. Also, RiccatiSolve solves the form corresponding to what you call "standard form". But why is this important for you?
Oct
1
comment Mathematica 10 Linux - no symbols when exporting in PDF
Oh, and another thing: If you reply to other people, use "@name" to notify them of your reply.
Oct
1
comment Mathematica 10 Linux - no symbols when exporting in PDF
You should be able to check in your pdf viewer which fonts are used in your pdf and if they are embedded or not. It's strange though that the Mathematica fonts didn't get installed correctly, I haven't had these problems in a long time now. PS: In evince goto "Properties" and click on the "Fonts" tab to see all fonts used in the document.
Sep
30
awarded  Explainer
Sep
29
comment Mathematica 10 Linux - no symbols when exporting in PDF
Maybe a missing font? Have you tried setting the tick labels to a different font?
Sep
24
awarded  Autobiographer
Aug
21
comment Integral converging in M9 but not in M10
I can't reproduce your problem with ParallelTable. On the other hand I don't understand the significance of Quit here. In what order should I evaluate which commands? Can you elaborate pls?
Aug
21
comment V10 interface problems
I'm on Linux and I've been experiencing (1) for many versions and still do, so I'm pretty much used to it. I think it's a problem with the graphics toolkit they are using. For me the text field is restored when I click into the general area where it's supposed to be. I can also confirm (3), but again, I've had that problem in earlier versions.
Aug
20
comment Why isn't Lookup treated like other symbols?
You seem to misunderstand what ´TempHead /: Lookup[t1_TempHead, t2_TempHead]´ actually does (which caused some confusion for RunnyKine and m_goldberg, see below): It adds a definition to (the UpValues) of ´TempHead´, not to ´Lookup´. That's why unprotecting ´Lookup´ doesn't help of course.
Aug
20
comment Integral converging in M9 but not in M10
Of course it can, you are changing the state of your Mathematica session after all. I would suggest that you go through your code step by step and see which symbols/expressions evaluate to something unexpected. Start from the bottom and work your way up. I don't think, however, that someone will do this work for you.
Aug
20
comment Integral converging in M9 but not in M10
@Zet I can confirm Michael's observation that this code gives the desired result on V9 and V10 (on Linux, but it's very unlikely this makes a difference)
Aug
20
comment Integral converging in M9 but not in M10
@Zet Did you restart your kernel?
Aug
20
comment Algebraic expressions on pure functions
Just curious, why are you making the postfix/prefix distinction?
Aug
17
comment A problem about generating `[]` automatically
Not an answer to the original question, but you can change keybindings as described here
Aug
14
comment Avoid creation of OwnValues when inserting transformation rules into Experimental`OptimizeExpression
Also, I'm not sure why you are saying that you can't keep the assignments localised. Block[{a,b,c,d},Experimental`OptimizeExpression[{list1/.Rule->Set,list2/.Rule-‌​>Set}][[1,2]]] of course does exactly that.
Aug
14
comment Avoid creation of OwnValues when inserting transformation rules into Experimental`OptimizeExpression
Just another shot in the dark and much along the same lines as @DanielLichtblau's answer (but much less sophisticated)... Do you like something like this better? Solve[Join[list1, list2] /. Rule -> Equal, {a, b, c, d}]
Aug
12
comment Elegant way to do series expansion around x+$\epsilon$
@Pickett Oh well, you convinced me...
Aug
12
answered Elegant way to do series expansion around x+$\epsilon$
Aug
12
comment How can I write a function which takes another function of a variable and the variable itself as arguments and gives a list of critical points?
As you can see in the answer below, you shouldn't add this condition. In fact you must not, otherwise your function would only evaluate for constant functions. BTW If you reply comments use something like @TobiasNash, this notifies the corresponding member.
Aug
12
comment How can I write a function which takes another function of a variable and the variable itself as arguments and gives a list of critical points?
Maybe you could add why the OP shouldn't use critpts[f_,x_]/;f'[x]==0 as he was trying to do?