@BrettChampion If I remember correctly, the three functions: SQLUpdate, SQLTableNames, and SQLTableInformation all had titles that said "Mathematica 9 Documentation." That said, the links returned from the Google search all have the correct titles when clicked on, now, but the Google cache (as of this point) still returns the v.9 links.
@CHM It has become my go-to for quick and dirty scripting. If I've got some data that I want to pull some numbers from and maybe sketch a few charts, I'll start in Mathematica until I know what I want to really build.
@CHM It kinda suits my style as programmer-tinkerer pretty well. If I want to do something quick with image processing, I've got 70% of what I need in one place.
@BrettChampion The DatabaseLink doc pages. I think it's only the title that's updated. It's been like that since at least early February (that's when I noticed it).
I have added a bounty to it, trying to get someone to answer; it's a part of Mathematica that is much too deep for my current understanding, but I'd love to learn more about it
so I officially announce that whoever answers this will also earn my eternal gratitude (in addition to the bounty)
in the unlikely case I should turn out not to be eternal, my eternal gratitude is redeemable for regular gratitude
@Fx What sort of answer do you expect? Equal seems to be handled specially ...
@Fx It's interesting and a bit shocking that Block doesn't work with all symbols, but what sort of answer are you looking for? A way to Block it completely?
How many pointers (*) are allowed to use in a single variable?
Let's consider the following example.
int a = 10;
int *p = &a;
Similarly we can have
int **q = &p;
int ***r = &q;
and so on.
How many * are allowed in a single variable?
For example,
int ****************zz;
The guy rep capped twice with this little gem; reminds me of Waldo. Not necessarily a bad question, but it is surprising how fast this got him a gold badge.
i remember seeing a question about implementing the MMA "you're forgetting an argument in this function" caret for custom functions but i can't seem to find it
Mathematica has a useful feature that for functions and special constructs getting passed local variables (for example Minimize or Block), the affected variables are shown in a different colour. Now when writing your own functions of this type (like the NOptimize function found in this answer), M...
It's part of a larger code that creates a function that returns two flags specifying if the point in question for a particular data set is the ground state and is converged. How it works, god only knows.
BTW, the code block it is part of is preceded by the only comment in the entire cell: `(* Generate index for grounds state and convergence flags by data set and U *)`
@Eli Ok you're right. It seems that celtschk's answer would be the best solution. I'm not very sure about the ethics of choosing answers and switching one's opinion. It also seems a combined effort. Any guiding rules? — Lou7 mins ago
@EliLansey Nothing unethical about it. When the original answer was posted, it was the best; that moniker no longer holds. While it is disconcerting to change the accepted answer, there is nothing inherently wrong with it.
@rcollyer The list correlate takes a list of booleans, and toggles single occurrences of True bracketed by False on either side (except at the beginning and end of the list). It is equivalent to #//.{before___,False,True,False,after___}:>{before,False,False,False,after}
MapAt on the Transposed input is applying this listcorrelate filter on the third element of each data point (a list of triples). It then returns the original list, but filtered.
So the list could be a 2D array of booleans in the x-y plane: for example, {{{1, 1, False}, {1, 2, False}, {1, 3, True}, {1, 4, True}, {1, 5, False}, {1, 6, True}, {1, 7, False}, {1, 8, False}}, {{2, 1, True}, {2, 2, False}, {2, 3, True}, {2, 4, False}, {2, 5, False}, {2, 6, True}, {2, 7, False}, {2, 8, False}}}
But not knowing your application, I have no idea how to assign meaning to the booleans...
@JxB Thanks. I figured it was along those lines. I have much better ways of doing this now, so I don't think I'm going to be reusing that part of the code. It is just icky.
My better method is to offload it into this functionality.
@JxB you aren't kidding. It is some of the most highly processed data I've created, and the code for it is equally dense.
In particular, now DataListPlot allows you to specify a way of comparing the multiple datasets together to determine how to plot each point.
Any way, I have to run and find some food. Let me know if you'd like to play with DataListPlot. I'll warn you that it is still a work in progress, but it is useful.
@Fx not from the transcript... only inside the chatroom, and that too only till the visible parts (i.e., till you can scroll up). If you're always in the room, then the "visible" part will be quite long
I want to be able to use Mathematica fonts with LaTeX. I find two sets of instructions for this:
Robert's post there
Kuska's instructions in mysymdoc.pdf, a file in the Mathematica 8 folder SystemFiles/IncludeFiles/TeX/texmf/doc.
Method (1) explicitly assumes one is using linux, although robe...
I have the equation
am'[t] == Piecewise[{{r - m*am[t], Mod[t, td] < x}, -m*am[t]]
and I'm trying to solve for am[t] using NDSolve. r and m, td and x are constants. td is much greater than x. At every integer multiple of td, we use the first case of the equation for an interval with length x...
I answered “Equating matrices (or higher order tensors) element-wise” with:
{A, B} = RandomInteger[3, {2, 4, 3, 2}];
Block[{Equal},
SetAttributes[Equal, Listable];
A == B
]
{{{False, False}, {False, True}, {False, False}},
{{False, True}, {False, False}, {True, False}},
{{False, Tru...
How many pointers (*) are allowed to use in a single variable?
Let's consider the following example.
int a = 10;
int *p = &a;
Similarly we can have
int **q = &p;
int ***r = &q;
and so on.
How many * are allowed in a single variable?
For example,
int ****************zz;
I want to be able to use Mathematica fonts with LaTeX. I find two sets of instructions for this:
Robert's post there
Kuska's instructions in mysymdoc.pdf, a file in the Mathematica 8 folder SystemFiles/IncludeFiles/TeX/texmf/doc.
Method (1) explicitly assumes one is using linux, although robe...
I have the equation
am'[t] == Piecewise[{{r - m*am[t], Mod[t, td] < x}, -m*am[t]]
and I'm trying to solve for am[t] using NDSolve. r and m, td and x are constants. td is much greater than x. At every integer multiple of td, we use the first case of the equation for an interval with length x...
