# Tagged Questions

Questions on using and specifying iterators used in Mathematica functions.

91 views

### .NET link - index of property

I have a property in .NET Type, which is actually a generic list of objects. When I try access the property using numeric index e.g. 10, this works. However when I iterate through indices using ...
141 views

### How to generically produce iterators (to loop over many variables)

A generalization of, for example: Do[(* stuff *), {x, listx},{y, listy},{z, listz}] I can almost do this with Table, but I need a way to flatten the outer ...
128 views

### How do I produce iterative equations and bifurcation diagrams?

I need to produce orbit diagrams for different values of x for the following equation: f[r_][x_]:= r*x - x^3 I'm fairly new to Mathematica, so I haven't had a ...
57 views

### Filter through list and lump data [duplicate]

I have a very large data set (around 3000) that looks like: ...
187 views

### Slow evaluation of complicated Table

I have a system of recursive equations x[t+1]:=f[x[t],p[t-1],a[t],a[t-1]]; p[t+1]:=g[p[t],x[t-1],a[t],a[t-1]]; a[t+1]:=h[x[t],p[t],a[t],a[t-1]]; I want to ...
180 views

### invert system of two parametric ODEs and plot results of do-loop

I can solve this system of parametric ODE (u is the parameter,while g,e and ...
149 views

### Iteration of multiple functions that feed into each other

I'm trying to figure out how to iterate through several functions that all "feed" into one-another but am having some trouble. Here are the variables: ...
303 views

### Table iteration over two ranges

I am trying to create a Table where the iterator has two ranges with different iteration steps. Let's consider a simple example: I want to find the square of the ...
138 views

### Plot with sum and binomial command

A few days ago I asked about a problem with plotting a sum. You advise me to use Evaluate option, and that helped me very. But now I have a very similar problem, but i can't find the mistake. I have a ...
151 views

### Reproducing a Plot done with WolframAlpha [duplicate]

I have problem to draw in Mathematica a plot like this: Plot[{Sum[a^10*(-1)^(x-a), {a, 1, x}]}, {x, 1, 10}] The problem is that on the plot there is no graph. As ...
146 views

### Why does the iterator index in Table not work here?

I type the following command line Table[D[#1,varx[[i]]] &,{i,3}] where varx is a vector of dummy variables ...
163 views

### Convolution of a denstity function having a point mass with itself

My density function is as follows: ...
259 views

### How to use Mathematica in my Problem as I would use it in Matlab

I would like to calculate the convolution of a function with itself for $n$ times. Let $n$ be $10$. For $n=1$, I wont make any calculation and $f0$ is my function, when $n=2$, I will convolve $f0$ ...
600 views

### Plotting the convolution of the same probability density function with itself

I would like to compute the integral $$q_n(x)=\int_{B}^A q_{n-1} (\omega)f(x-\omega)\mathrm{d} \omega,\quad q_1=f,\quad n\geq 1.$$ for a given density function $f$. Basically it is the convolution ...
782 views

### How many iterations of Newton's method are needed to achieve a given precision?

Consider using Newton's method to solve the equation $arctan(x) = 0$. Using an initial guess of $x_0 = 1/2$ produces a sequence that converges rapidly. After $8$, iterations, $x_8$ is accurate to well ...
207 views

### How to code the following product?

I am trying to examine the properties of the following product for a given tuple $\vec \lambda = (\lambda_1, \lambda_2, \dots, \lambda_n)$, then the product is as follows:  \dim \Gamma_\lambda = \...
46 views

### List elements and iterator name collision [duplicate]

Let there be two lists, exp = {{i, i}, {j, j}}; exp2 = {{r, r}, {o, o}}; and there are two Table commands to access them. Then, ...
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### Nested For Loops that result in no output [duplicate]

I am sure that this is not the most elegant code you will have seen, but I am trying to loop through an expression to see if FultonHarrisn] produces any outputs ...
For any positive integer $n$ which is not specified a priori, I can make $n$-tuple vector $v$ by v = Array[a, 1, n]. Now, given that $n$ is a positive integer which ...