# All Questions

56 views

### Academic citations network [on hold]

Do you know if there is curated data that generates a network of academic citations? Something like http://well-formed.eigenfactor.org/radial.html or http://www.eigenfactor.org/map/maps.php I could ...
29 views

### NDSolve with arrays and Tables of Equations and WhenEvent

I've been toying around with NDSolve for a while, and read through the website. By doing so I discovered that I could use it for vectors and arrays with much pleasure. So I wanted to write a simple ...
61 views

### Placing some controls above and some below plot

The code below is something I wrote quickly to simulate the problem I'm having with more complex code. I use Row (or Grid) to get the first 2 manipulate variables (a and b) on one line above the plot ...
110 views

### Generating a list of questions (simultaneous equations)

I am trying to create a list of simultaneous equations showing steps, where I only need to change a, b and the question number, and maybe a couple of minor things about q (where q is the factored ...
117 views

### Plot parametric solutions using Manipulate

I want to plot the parametric diagram of {y[t],z[t]}, in which I manipulate a parameter, ω, from $[1, 10 \pi]$. Here is what I have attempted, but I can't get a ...
39 views

### Multiple NIntegral with singularity

I need to compute the following integral FF[0]. When evaluating FF[0] Mathematica simply takes too much time. The problem may ...
51 views

### Open a Mathematica 9 notebook in Mathematica 8

I have the following question: Can I open a Mathematica 9 notebook in Mathematica 8? Are there compatibility issues?
297 views

### How to visualize slope fields of differential equations without vectors?

I'm looking to visualize slope fields of differential equations for my differential equations course. Every example I see draws them as vectors, adding unnecessary "arrows" that, to me, are visually ...
24 views

### Combine two functions in mathematica to get one image with two elements

I am trying combine this two functions into one piece in grid. ...
131 views

### Colorize a 3D distribution of points according to density

Suppose we have some random 3D distribution of points. I'll use the spherical ball defined below as an example and a starting point for the discussion here : ...
40 views

### Simplify rearranges equations?

I've been using Simplify/FullSimplify to simplify some nasty equations, and by and large it does well but sometimes it rearranges equations in an unhelpful way. ...
96 views

### A* algorithm for finding shortest path in a graph

FindShortestPath finds the shortest path between two vertices in an edge-weighted graph, allowing a choice between the Dijkstra and Bellman-Ford algorithms. In my (limited) understanding, both of ...
67 views

### How to increase processing speed? [on hold]

Well, let's first begin with the specs of my computer: Win 8 i7-3537U CPU@2.00GHz 2.50GHz 4GB of RAM 64-Bit And using Mathematica 8 I have to create some programmes to solve statistical problems, and ...
45 views

### Can I make a function which depends on several arguments which are not independent?

Here's a simple example Suppose have the permanent relation that z is proportional to xy^2, for real numbers s. z = s x y^2 Now, we are interested in ...
66 views

### Initial and boundary value errors

NDSolve::ivone: Boundary values may only be specified for one independent variable. Initial values may only be specified at one value of the other independent variable. >> I keep getting this, ...
49 views

### How to divide a notebook into sections? [on hold]

I've seen some very nicely formatted Mathematica notebooks with sections, explanatory text, etc., but I can't figure out how to do something similar. The documentation is not especially helpful here ...
42 views

### Make duplicate string then join two strings together in a table

I have two lists of data, dataA and dataB. ...
56 views

### How to save the output file and make it run without mathematica? [on hold]

I want to save a file, as the picture shows, and make it run without mathematica. I have to move this file to another computer which dose not install mathematica and run this file with all functions, ...