The table tag has no wiki summary.
1
vote
2answers
64 views
Create simple table with function of column values
I just want to create a simple table:
Three input columns, one output column
Call the inputs {x,y,z}, each can take values ...
1
vote
2answers
48 views
How do I assign specific data points in an array to a new array?
I am trying to learn how to script/program in mathematica and I am retyping some simple C and FORTRAN programs into Mathematica as a way to learn. I am writing a Monte Carlo code to calculate the ...
0
votes
2answers
59 views
Put results in multiple columns for comparison
One thing I would like to do in many instances is arrange input/output in columns for comparison. I expect that I need to use Grid to do this, but have not been ...
0
votes
1answer
85 views
Can Table be used inside Manipulate?
EDIT: CHanged the code. Please try again t see if it works well on our PCs.
I am creating a simple Manipulate[] notebook. However when I place Table[] in the code, like:
...
3
votes
1answer
109 views
Cartesian product of sets
I have two types of sets, one of them is a list of points of the form $\{t_{k}\}$ and the other one is an interval of the form $[a,b]$. And my custom set consists of these type of sets and I need to ...
1
vote
2answers
127 views
Taking a percentage of data from a list or a table
I have a list of data and for the calculation I only need the a of portion of the data. I know that Take[data, {1,100}], for example, is taking line 1 to 100 of the ...
10
votes
5answers
208 views
Relational joining of tables
A common thing to want to do with data is to combine it (at least I thought this was a common thing). In SQL there is the idea of table joins "select id,v1,v2 from A,B where A.id=B.id" kind of thing. ...
2
votes
2answers
150 views
Deleting parts of groups that do not have equal dates
Find the intersection of dates within the pair and remove the other dates & corresponding prices. Also keep the list in same format as it currently is in.
Let me explain: Each stock has closing ...
8
votes
1answer
131 views
Why is building a table of function values so much slower than just plotting the function?
Here is a function that take some time to evaluate:
n = 1000;
coeffs = RandomVariate[NormalDistribution[], n];
f[x_] := Sum[coeffs[[k]] Sin[k x]/k, {k, 1, n}];
...
0
votes
0answers
72 views
Efficiently tabulating system of coupled ODEs for NDSolve
I am solving a (large) system of second order coupled nonlinear ODEs. I have been increasing the number of dependent variables present in the system slowly, to converge on more physically realistic ...
2
votes
1answer
91 views
How to parallel this nested table efficiently?
I have an 8 core CPU and want to parallel evaluate the following nested Table
Table[Table[expr[i,j], {i,1,10}], {j,1,4}]
But ...
0
votes
0answers
36 views
GUIKit`Private`Script appended to expression when I try to update list through Table Widget
I am trying to update a list every time a value in a Table Widget is changed.
My list has to be made from expressions and not strings since I am doing some symbolic calculations each time the table ...
2
votes
1answer
83 views
Errors when using ParallelTable inside a package
I'm developing a package that contains a function that requires evaluation of an expensive Table, so I use ParallelTable ...
1
vote
2answers
91 views
Creating a Table of Items for GIF creation
I want to create a table as shown below so that the steps from the first item to the second item, and the second item to the third item, etc. can be animated.
I am not at liberty to post tested ...
5
votes
4answers
158 views
Creating simple table
How do I create a table like this? I find it very hard to create the zero-row and zero-column.
Edit: I am looking for a solution where a formula eg. Table or something else is being used. I can ...
