For questions on writing functions (pure or using Set/SetDelayed) for any purpose, including the features that may be incorporated in those functions, such as options, patterns and conditions.
6
votes
0answers
62 views
Plotting a defined function gives different results from plotting the function directly.
Consider the following piece of code:
function[t_]:=Exp[-9 t^2];
LogLogPlot[{function[t],Exp[-9 t^2]},{t,.01,100}]
I expect the two plots to exactly overlap each ...
6
votes
0answers
90 views
Is there a function to generate a minimal clique cover?
This is a graph problem known as the "Clique Edge Cover" or "Intersection Number" problem, and the goal is to find, from a given graph like $E=\{\{a,b\},\{a,c\},\{b,c\},\{b,d\},\{c,d\}\}$ and ...
2
votes
0answers
93 views
correct usage of ParallelTable
I am trying to parallelize my script. Here is a MWE of how I have done it:
...
2
votes
0answers
68 views
From notebook,how can I change variable value with in .m file dynamically?
I wrote a function named Testing.
...
2
votes
0answers
80 views
How can this function's options be used in different places?
I wrote this function to make a ListPlot where the points are colored by a third argument.
...
2
votes
0answers
239 views
Generating a function which outputs possible chemical reactions
I want to make a list of chemical reactions and I write them down in a $\require{mhchem}\LaTeX$ format. They are of the following form
$$NA_n^i+MB_m^j \rightarrow \hat NA_{\hat n}^{\hat i}+\hat ...
1
vote
0answers
96 views
Positive integrand giving negative answer
I'm integrating a positive function f(t) times sin(t) from 0 to pi/5 and get -38.
Actually f is slightly negative for a short time (smallest value ~ -0.0005), but far from enough to explain this. ...
1
vote
0answers
110 views
How do I use Wolfram Alpha to build a poker hand comparator in Mathematica?
I know there is algorithms out there to compare two given poker hands. I'm not trying to implement one from ground up. I'm trying to come up with a way that uses an existing method through Wolfram ...
1
vote
0answers
68 views
How can I compile function with Apply?
For example, I tried to compile this function but Mathematica gives "The only function arguments supported are Times, Plus, or List", I have no a way to compile this.
...
1
vote
0answers
85 views
How can I obtain the function described by given set of central moments?
I want to investigate how my function P behaves with different probability functions rho as input variables.
This means
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1
vote
0answers
129 views
Return Functions from parallel execution of module
I wrote a module which numerically solves an ODE using NDSolve. The result from this is e.g. either ...
0
votes
0answers
47 views
creating some smooth density functions
I would like to create some density functions based on some distance measure $D$. As a base density function lets say I have a Gaussian density $f$ with mean $-1$ and variance $1$. I would like to ...
0
votes
0answers
68 views
Issue with Coefficient command
I'm trying to used the Coefficient command to extract the numerical values in front of a Chebyshev polynomial. I know that there is a numerical way to do this, presented in numerical recipes, which I ...
0
votes
0answers
44 views
How to insert a function into OptionsPattern?
I’ve written a function TableauForm to draw a standard Young Tableau. This problem is related to this one, however, the difficulty is that, a function has to be applied to the list in my case.
This ...
0
votes
0answers
70 views
Finding coefficients that make certain functional expression vanishing
My problem is to find a procedure that gives coefficients which make certain functional expression vanishing.
For example if I have a polynomial $P(x)$ of one variable $x$ given by $P(x)=a_0+a_1 ...
