446 reputation
18
bio website fa.its.tudelft.nl/~teuwen
location Delft, Netherlands
age 26
visits member for 1 year, 3 months
seen Apr 28 at 21:08
stats profile views 147

About me

I'm a PhD candidate in analysis (harmonic analysis). I have a Master of Science degree in mathematics (analysis).

I am interested in many topics in analysis, but in particular: harmonic analysis, functional analysis, operator theory and special functions.

My email address is jonasteuwen@gmail.com.

I would appreciate it if you would correct my spelling and grammatical errors.


Me elsewhere


Feb
6
awarded  Popular Question
Jan
25
awarded  Yearling
Apr
7
comment How do I use the result of Solve in a function definition?
@SjoerdC.deVries Well, when at the same time when I call a function. So not only if I execute the whole worksheet.
Apr
7
accepted How do I use the result of Solve in a function definition?
Apr
7
comment How do I use the result of Solve in a function definition?
@SjoerdC.deVries Thanks. I know this, but the way I made it set Z to a particular value, but I have fixed it in another way.
Apr
6
comment How do I use the result of Solve in a function definition?
@RM Right, good point! Can you explain why I cannot use capital letters as function names?
Apr
6
comment How do I use the result of Solve in a function definition?
Thanks, I will try this, but I think there was a problem when $z$ was already set (by running it once with different amax). Is there a way to reset the value of z before doing a computation?
Apr
6
asked How do I use the result of Solve in a function definition?
Mar
11
accepted Indeterminate expression. Where?
Mar
11
asked Indeterminate expression. Where?
Mar
10
comment Why does Mathematica give the wrong answer when integrating?
@Rolf Cool stuff!
Mar
8
awarded  Nice Question
Mar
8
accepted Why does Mathematica give the wrong answer when integrating?
Mar
8
comment Why does Mathematica give the wrong answer when integrating?
Right... That implies that I have to check a few hundred of them with many parameters :-). Of course, any program can have a bug, but it still is very annoying.
Mar
8
comment Why does Mathematica give the wrong answer when integrating?
Hmm, right. But how do I fix this? My project doesn't work when this is wrong! And how can I now trust the output? I can't check all these horrendous integrals by hand, I was using Mathematica to not make mistakes.
Mar
8
comment Why does Mathematica give the wrong answer when integrating?
What do you mean? I use 8.0.4.
Mar
8
asked Why does Mathematica give the wrong answer when integrating?
Feb
28
accepted Compute integral symbolically or numerically
Feb
27
comment Compute integral symbolically or numerically
Thanks, this works for certain integrands, but not for all unfortunately. (Like the last one I gave).
Feb
27
revised Compute integral symbolically or numerically
Added integration method