31,707 reputation
570150
bio website
location Kraków
age
visits member for 2 years, 6 months
seen 13 mins ago

Et harum scientiarum porta et clavis est Mathematica

"Mathematics is the door and key to the sciences" - Roger Bacon (~1214-1292)

$$ \sum_{n=1}^\infty\frac{1}{n^z} = \prod_{p \text{ prime}} \frac{1}{1-p^{-z}} $$


11m
reviewed Reviewed Eigenvectors inside a maniupulate function
2h
reviewed Looks OK Finding subset of integer range with smallest LCM
3h
reviewed Reviewed Replace parameter of NDSolve by a Function
3h
revised Replace parameter of NDSolve by a Function
added 196 characters in body
3h
reviewed No Action Needed Finding subset of integer range with smallest LCM
7h
reviewed Reviewed Numerically solving a 2D oscillating integral
7h
revised Numerically solving a 2D oscillating integral
added 58 characters in body
7h
comment Why does WRI not provide symbolic solution(s) to Heat equation?
Well, to return that symbolic solution we should be ensured that is the unique one, however it depends on the class of functions we work with. As far as we work with smooth initial conditions we can proove the uniqueness (in fact one can do it in much larger class) however there are so called weak solutions where we cannot prove any kind of uniqueness theorems and this might be a reasonable choice why Mathematica doesn't yield a symbolic solution. However this is a guess, I'm not sure about their current policy on PDEs.
9h
reviewed Approve suggested edit on Why does WRI not provide symbolic solution(s) to Heat equation?
9h
reviewed No Action Needed Setting a Row from a Matrix as Variable
1d
comment Mathematica policy for correctness of results
Both might be true, however if you take a closer look at S.Wolfram's blog you'll find that he seems to ignore limitation theorems in mathematics. Nevertheless I'm quite sure he is not so naive to play with warranting anything seriously.
1d
comment Mathematica policy for correctness of results
Since axiomatic systems are incomplete you can't expect that you will be provided any kind of serious warranty.
1d
comment Mathematica policy for correctness of results
Do you really live in fantasy? There are no guaranties that mathematics is correct (at least such rich axiomatic systems as arithmetics of natural numbers - Goedel theorems) the more it concerns Mathematica
1d
reviewed No Action Needed How to stack matrices: one on top of another?
1d
reviewed No Action Needed JSON problem? MMA10, Windows 7 or Linux Mint
1d
reviewed Leave Closed Swap elements in list without copy
2d
revised Why doesn't Roots work on a certain quartic polynomial equation?
edited title; edited tags
2d
reviewed No Action Needed Workbench fails to run on OSX. Reports “Front end could not be launched.”
2d
comment NSolve missing solutions in Mathematica 10
This is closely related: Issue with NSolve
2d
reviewed No Action Needed 2D Arrangment/Optimization Problem