Tagged Questions
0
votes
1answer
76 views
Plotting the Bessel function with a float argument [closed]
The equation I am working with is
$$ E = M_e + \sum_{n = 1}^N\frac{2}{n}\mathcal{J}_n(ne)\sin(nM_e) $$
where $\mathcal{J}_n(x)$ is the nth Bessel function of the first kind.
When I enter the ...
0
votes
1answer
165 views
DAE - varying initial conditions
I want to solve a DAE-system and I want to vary more than one initial conditions and to manipulate them. I looked here:
Putting NDSolve into ParametricPlot
But it does not work:
...
1
vote
1answer
81 views
Plot FindRoot for non-trivial function
I would like to plot the results of FindRoot over certain range of inputs. I tried to do this with the code:
...
3
votes
0answers
189 views
A is fast, B is fast, but together they're Mathematica-crashing slow?
I'm trying to do something with finding solutions to a quantum mechanics problem with n wells. If there are 40 wells, I need to find the solution to an equation in the form:
...
1
vote
1answer
171 views
1
vote
1answer
114 views
Seemingly simple optimization problem is slow
I'm trying to generate a demand curve numerically, given a utility function. The function for the demand is defined like so:
...
2
votes
2answers
221 views
Plotting several numerical solutions plus the analytic solution of ODE in one plot
I want to be able to plot several numerical solutions of an ODE plus its analytical solution in one plot in order to see how the numerical solutions converge towards the analytical one w.r.t. the ...
10
votes
6answers
2k views
About multi-root search in Mathematica for transcendental equations
I have some questions for multiroot search for transcendental equations. Is there any clever solution to find all the roots for a transcendental equation in a specific range?
Perhaps ...
