# Tagged Questions

Questions on the use of the Table[] command and other functionality related to lists. Use [tag:matrix] for matrix algebra and related methods, and [tag:list-manipulation] for questions about transforming or operating on existing lists.

1answer
59 views

### Create a table indexed form a list giving a the index specifications

I need to create a table indexed form a list. e.g.: list={{i, 3}, {j, 4}}; would give the table Table[..., {i,3}, {j,4}]; ...
1answer
133 views

### Smoothing out data points in a ListDensityPlot

I stumbled upon this problem when I was trying to make some nice smooth ListDensityPlots of my numerical data. In short, my problem is that I let Mathematica plot two copies of basically the exact ...
1answer
55 views

### Export Table to Quicktime MOV Animation

I'm tying to export a table of images to a quicktime movie with a set duration (in this example, 12.67 seconds) ...
0answers
72 views

### Speed differences between Table, Replace, Array, Map, and AssociationMap

EDIT: Actually, it looks like part of this is bogus—Array doesn't actually work on this input (I'm often a little shaky on what kind of input, exactly, works for ...
1answer
61 views

### RegionPlot error

I'm trying to represent the following table using the command regionplot. The rectangle (0,0), (0.5,0), (0,1),(0.5,1) should be covered, however it is not. Does anyone know what the problem is? Thank ...
1answer
92 views

### remove unevaluated cells from table

I have created a table Tv where each row is of the form {x, y, Iv[x,y]} where Iv is some complicated numerical integral and <...
1answer
148 views

### loops and data file

I have solved a set of equations for a specific given data point and restricted my solutions to 100. then I did TrimmedMean to have the mean value of all 100 ...
1answer
111 views

### ParametricPlot3D crashes Kernel when called repeatedly in loop

I have a parametric function surf[u,v]. It can be plotted successfully like this: ...
1answer
82 views

### Deleting vertices from Graph and preserving Structure?

My goal is to remove vertices from graphs (and the edges from them) and then take GraphComplement to find out cut sets in graphs with sink and source such as here. So How can I delete vertices from a ...
1answer
21 views

### Dynamically constructing symbolic tensors

Is there any way to construct tensor of any given dimension d and rank r with symbolic entries? i.e., instead of manually constructing one as Table[T[i,j,k],{i,1,10},{i,1,10},{i,1,10}] for d=3 and r=...
2answers
163 views

### How to correctly implement in a new function the scoping behavior of Table, Sum and other commands that use Block to localize iterators?

It is documented that "Block is automatically used to localize values of iterators in iteration constructs such as Do, Sum, and Table." Therefore the dummy index (iterator) in a Sum is shielded ...
1answer
52 views

### Constructing tensors with arbitrary rank and dimension [closed]

How can I create a tensor with arbitrary rank n and m components in each dimension? I am looking for a command in which I insert n and m and it spits out the corresponding tensor with random entries (...
1answer
44 views

### Evaluating Root forms in a Table [closed]

When I put a Root form in table, the parameters of the Root form don't evaluate. I don't know how I can indexed values substituted into root form in the table to get have numeric output. ...
0answers
51 views

### Use If condition with ListPlot

Here is my code to use If condition with PLot: ...
1answer
69 views

### Operations on dynamic arrays [duplicate]

When I do a simple operation like this fib = Table[Fibonacci[i], {i, 15}] and then look to find the position of a certain value, everything works fine: ...
4answers
135 views

### Table and IF statement

I want to make a table to get a nbyn matrix. However, the diagonal are divided by zero. For example: n = 5; Table[1/(Sin[i] - Sin[j]), {i, 1., n}, {j, 1, n}] I ...
1answer
124 views

### Plotting a table with many y values

I'm trying to plot a bifurcation map for a Lorenz System. I have a function (called estables in the code that follows) which, for a certain value r, returns the ...
1answer
56 views

### How can use Table for two functions obtained from NDSolve? [closed]

I have obtained a numerical solution using NDSolve for two functions a(x) and b(x). how do I use Table to make a list of a(x) vs b(x) values. is it simply Table[{a(x),b(x)},{x,0,100}] or should I use ...
1answer
77 views

### Table with programmatically specified number of iterators in Compile

Compare two ways of computing a table of values of a multivariable Gaussian: ...
1answer
88 views

### Accessing the elements in a table is slower than calculating each time?

This is a follow-up of How to accelerate combinations and sum calculations here? I have tried all tricks but when N reaches 35 the time is still intimidating in a 16-core server, which is far better ...
2answers
493 views

### What is the best way to export a table of numerics with legends ready for Word?

I want to put my table output into an MS Word document without having to edit it in word after, so I want to export it ready for Word in final version with complete legends and title. Is it possible ...
1answer
128 views

### Why does Table behave differently in Mathematica compared to WolframCloud?

In Stephen Wolfram's elementary introduction to the wolfram language it says you can use the table function like this: Table[5, 10], to create a table of the ...
0answers
27 views

### Partial Sum of Binary Sequence not Working

I have the following code: ...
1answer
48 views

### How to write a similar “for loop” with table?

I have a code to replace the z coordinate of one point A(x,y,0) on the xy plane: ...
4answers
62 views

### Matching a Table and a List and building a new Table

I have a Table which includes {Numbers, Probabilities}. For example A= {{1,0.5},{2,0.25}, {3,0.1},{4,0.9}……{100,0.1}}. Put attention that the numbers are 1,2….100 in order. I have a List of random ...
4answers
137 views

### Find the length of the intersection of two lists including duplicates

I have 2 Lists. The first one includes all the numbers from 1 to 10. listA={1,2,3,4,5,6,7,8,9,10} The second includes ...
3answers
179 views

### Drop in nested tables?

I want to drop a specified number of elements from a 'table ...
1answer
77 views

### issue with Animate

I want to make a animation based on the dataset like data = Flatten[Table[{x, y, x^2 - y^2}, {x, -3, 3}, {y, -3, 3}], 1]; I show this data using a ListPlot3D. <...
3answers
135 views

### Alternative forms to Table for iterating over replacement rules

I have a multivariate polynomial x. I get coefficients of various monomials using CoefficientRules, which returns a list of ...
0answers
55 views

### Export a plot to Excel [closed]

I know questions similar to this have been asked before but I couldn't figure it out. These are my hypothetical lines: ...
1answer
53 views

### What makes imaginary parts show up?

If I define a function using alpha[y_, d_] := 2 ArcCos[1 - (2 y)/d] Then if $y$ and $d$ are equal, the result is $2\pi$ : ...
0answers
22 views

### How to extract limits number of control points out of an equation

I am working on generating a table of control points: Table[x^2 + y^2 + z^2 == 1, {x, -2, 2}, {y, -2, 2}, {z, 2, -2}] I am getting a whole bunch of points but I ...
1answer
70 views

### Function Evaluation in Table [closed]

Apologies in advance: this is a really basic question, and I am sure it has been answered, but I don't know enough mathematica to even find the answer. I have a differential equation I want to solve....
1answer
61 views

### Multiple Sets of Data

I would like to plot multiple sets of x and y data on the same plot with a legend. This is the code I am using right now: ...
1answer
70 views

1answer
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### Plotting a table with varying step sizes

how can I plot the below green curve? Is there any way I could manipulate the step sizes? This is my current code: ...
0answers
31 views

### How Can I combine the equations' results in a table without “x->” [closed]

For example: I have a series of functions: F[x_,o_]=x+o And I want to combine the result into a table with o=0.3,0.6,0.9.. ...
1answer
22 views

### Define nonzero variables Varyx = z_xy from table with dimensions x,y and values z_xy

I'm trying to do the following. I have a table, call it TransTable. To give an example ...
2answers
228 views

### Mysterious behaviour of ParallelTable

This question is related to Export bug in combination with ParallelTable?. The following code shows an even stranger bug than in the upper question. The y-axis should always be logarithmic, but in ...
1answer
43 views

### Table headings for a single column of data?

Is there a way to get this to work? data = {2, 1, 4, 3}; TableForm[ data, TableHeadings -> { {"L1", "L2", "L3", "L4"}, {"data"} } ]
1answer
39 views

### reducing decimal places in a table

How can I reduce the number of decimal places within a table to let's say two digits? The default setting is 6 decimal places. this is the mathematcia code: ...
1answer
202 views

### Export bug in combination with ParallelTable?

I am programming with Mathematica 10.3.1.0 on Windows 10 Professional 64 Bit and have an i7-4940-MX 3,1 GHz processor (4 cores). When I use in the example code below ...