================================== Top new questions this week: ==================================
[Partitioning a number into consecutive integers] http://mathematica.stackexchange.com/questions/134252/partitioning-a-number-into-consecutive-integers
Consider n=45; then
\[1+2+3+4+5+6+7+8+9=45\] \[5+6+7+8+9+10=45\] \[7+8+9+10+11=45\] \[14+15+16=45\] \[22+23=45\]
Question: how to find all representations of a given positive integer n as a sum of ...
- asked by corey979 (17 votes), answered by corey979 (19 votes)
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[Why is my GIF shaky?] http://mathematica.stackexchange.com/questions/134272/why-is-my-gif-shaky
As you can see, the circles are shaking vertically as they approaching each other. Why is that?
The code:
g = Table[ Graphics[{Thickness[0.01], Table[{ Circle[{0 + x, 0}, r], ...
- asked by Jason (13 votes), answered by Sumit (10 votes)
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[Can Mathematica edit large binary files in-place?] http://mathematica.stackexchange.com/questions/133973/can-mathematica-edit-large-binary-files-in-place
I have a very large binary data file (several hundred GB) which I would like to edit using Mathematica. The only edits required are a few isolated byte replacementsno insertions or deletions. Is it ...
- asked by David Zhang (12 votes)
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[Solving chess bishop problem] http://mathematica.stackexchange.com/questions/134218/solving-chess-bishop-problem
I have generalized the problem in this way where I have a list
list=Tuples[Range[8],2]
I want to find the largest sublist in which the addition of the two entries for any two elements of the ...
- asked by m. bubu (10 votes), answered by ubpdqn (11 votes)
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[How to get such rule with a elegant method] http://mathematica.stackexchange.com/questions/134227/how-to-get-such-rule-with-a-elegant-method
I have two lists:
list={{1,2,3,5},{5,3,9,11,12},{5,9,10,16}}; list2={{7,89},{96,5},{-6,-98}}; This is the expected result. {{1->{7,89},2->{7,89},3->{7,89},5->{7,89}}, ...
- asked by yode (9 votes), answered by Mr.Wizard (9 votes)
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[Pseudo-currying in one line] http://mathematica.stackexchange.com/questions/134315/pseudo-currying-in-one-line
Often when I’m writing OOP code using an object-manager association I find myself doing something akin to currying the arguments to some form of delegate object or head. (Building a one-argument ...
- asked by MB1965 (8 votes), answered by Bob Hanlon (8 votes)
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[How to create a multi-graphics plot (i.e. the decomposition of phase plane portrait) with well-organized structure?] http://mathematica.stackexchange.com/questions/134228/how-to-create-a-multi-graphics-plot-i-e-the-decomposition-of-phase-plane-portr
Background
I am trying to create a three-graphics plot using the command GraphicsGrid[] to show the decomposition of the phase plane portrait; unfortunately, the plot created is very ugly since the ...
- asked by Liang.X (8 votes), answered by Sumit (8 votes)
================================== Greatest hits from previous weeks: ==================================
[Finding Limits in several variables] http://mathematica.stackexchange.com/questions/21544/finding-limits-in-several-variables
Is there a way to find a limit of a multivariable function, like
\[\lim _{(x,y)\to (0,0)} f(x,y)\] with Mathematica?
When \(f\) is continuous, we can use \[\lim _{(x,y)\to (0,0)} \] ...
- asked by Dominic Michaelis (21 votes), answered by whuber (32 votes)
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[Can Mathematica do symbolic linear algebra?] http://mathematica.stackexchange.com/questions/3242/can-mathematica-do-symbolic-linear-algebra
For instance, is there some way I can say "let A and B be arbitrary real \(m\times n\) and \(k\times m\) matrices, Simplify[Transpose[Transpose[A].Transpose[B]]]" and Mathematica would simplify it to B.A? ...
- asked by nikie (38 votes), answered by helen (19 votes)
================================== Can you answer these? ==================================
[Graph that shows how symbols are used in an expression] http://mathematica.stackexchange.com/questions/134180/graph-that-shows-how-symbols-are-used-in-an-expression
I would like to make a graph to show how symbols build up an expression. For example, the matrix multiplication
$$ \left( \begin{array}{ccc} a & b & c \\ d & e & f \\ \end{array} ...
- asked by ConvexMartian (4 votes)
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[Question about DynamicModule] http://mathematica.stackexchange.com/questions/134063/question-about-dynamicmodule
I have a such custom function:
MyCopy := DynamicModule[{from, to}, Print@Grid[{{FileNameSetter[Dynamic[from], "Directory"], Dynamic[from]}, {FileNameSetter[Dynamic[to], "Directory"], ...
- asked by yode (3 votes)
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[General solution of inscribed square problem] http://mathematica.stackexchange.com/questions/134237/general-solution-of-inscribed-square-problem
There is my earlier question about Inscribed square problem
Now I tried to find the general solution for any curve \(f(x,y)=0\).
For instance :
\(\qquad \left (x^2+y^2-1\right )^3-x^2 y^3=0\)
...
- asked by vito (5 votes)