Tagged Questions
7
votes
5answers
230 views
Multiplying two dimensional data by a constant
I have a list of lists of the form:
{{1, 2}, {2, 4}, {2, 8}}
But I want to multiply only the second dimension of that data by a constant. I know I could do this ...
2
votes
1answer
95 views
Create a table with inline conditions
I am trying to create a table with conditionals inline. For example, I'd like to create a 2 dimensional table like this:
...
2
votes
2answers
122 views
How to populate a table using a rule replacement
I am trying to populate the rows and columns of a table by using a rule replacment.
To generate a table that looks like this
For example Sc would be row 1, column 1.
An example of a record looks ...
13
votes
5answers
270 views
Instruct a Table to only evaluate until a condition is fulfilled
I am looking for the way of building a Table of pairs of numbers in a fast way. My true table evaluates huge functions, and I see no way and reason to show those cumbersome expressions here. Let us ...
1
vote
3answers
93 views
How can I create a new tables out of a table and plot it
I have the following problem. I have a table, call it m, which is labelled by 3 indices (say i,j,k), each of them running from 1 up to 100.
I would like to be able to construct a new table which would ...
1
vote
3answers
136 views
Summation over 3 lists
I have three lists. As an example,
a = {10, 5, 6, 8, 7};
b = {4, 8, 9, 7, 9};
c = {7, 5, 12, 4, 1};
I want to get
$$x(i)=\sum ...
0
votes
0answers
26 views
Error in extracting a column [duplicate]
I imported excel data to Mathematica using this command.
kuruzD = Import[
"C:\\Users\\TMH\\Documents\\Problem Set 4\\kuruzData.xlsx"][[1]] //TableForm
I want to ...
4
votes
2answers
122 views
Extracting data from a table under conditions
I have a very large table with two columns. Let's say the name of first column is E and the name of the second is P. How can I get the E values when P = 0.
6
votes
2answers
163 views
Merging two Lists
I have two tables. One is given by
T1 = Table[{x, y, 0.}, {x, 0, V},{y, 0, V}]
and from a calculation I have the second, a list of points {x, y, z}
...
2
votes
1answer
97 views
writing a function using multiple variables
I am fairly new to Mathematica and am trying to write a function for the equation:
xx = [x/(Sqrt[h^2 + d^2 + y^2]))*(Sqrt[h^2 + (d + yy)^2])
where h, d are known ...
1
vote
3answers
221 views
How to create functions of arbitrary number of variables?
In the following code what would be the simplest way to generalize it to say some $N_f$ number of $z$ instead of just $z_1$ and $z_2$?
...
3
votes
1answer
107 views
Exporting/Importing a Table of complex numbers
I'm generating a long table of list of the form:
PN={{1,2,1+i},{3.5,2.6,2}...},{...},...
Using:
Export["PN.dat", PN, "Table"]
...
