Linked Questions
20 questions linked to/from Shorter syntax for Fold and FoldList?
215
votes
26
answers
18k
views
What are some useful, undocumented Mathematica functions?
There have already been some questions about some undocumented functionality in Mathematica. Such as (please add to these lists!)
How can one find undocumented options or option values in Mathematica?...
33
votes
7
answers
4k
views
How to Derive Tuples Without Replacement
Given a couple of lists like a={1,2,3,4,6} and b={2,3,4,6,9} I can use the built-in Mathematica symbol ...
- 1,029
9
votes
7
answers
2k
views
What is the inverse of CoefficientList?
I have numbers in vector notation. I need to get polynomial notation from them.
My numbers are {0, 1, 23, 5, 15, 0, 0, 0}. I want to get $x + 23x^2 + 5x^3 + 15x^4$...
- 183
14
votes
7
answers
3k
views
20
votes
4
answers
879
views
What is the best way to flatten a linked list with lists as values?
By following the advice on this site I have ended up with a linked list like the following:
acc = {{1, 2}, {{2, 3}, {{3, 4}, {{4, 5}, {{5, 6}, {}}}}}};
This was ...
- 5,371
15
votes
6
answers
911
views
Partitioning an integer into $k$ equal parts
Say I have an integer $M$. Is there a one-line command to create a partition of $M$ into $k$ integers s.t. the difference between any two integers is as small as possible?
For example, with $M = ...
- 153
7
votes
11
answers
1k
views
Convert list of lists to cumulative join
I have this:
list[1]={1,2,3};
list[2]={7,8,9};
list[3]={15,20,22};
I want this:
...
- 179
10
votes
5
answers
543
views
Finding time-series direction reversal of certain magnitude
I'd like to find the points of a time-series that are a certain distance away (in value, not in time) from the previous maximum, which I consider a reversal.
For example, for ...
- 1,637
13
votes
6
answers
403
views
Construct an infix operation from a list
Inspired by this question, if I have a list
{a, p, b, q, c}
where p and q are binary ...
- 34.1k
9
votes
3
answers
287
views
How to make a ReplaceAll Rule for adjacent items in a list?
I would like to make only one pass of a list of 2D items and replace adjacent items that have matching $x$ or $y$ coordinates with a series of linearly interpolated points between the two points. My ...
- 43.2k
8
votes
3
answers
570
views
How do I achieve the function of Continue using Catch and Throw?
Procedural programming is considered a bad practice in writing Mathematica code. But for education's sake, is there any way I can do Continue using Catch and Throw?
According to WRI's documentation, ...
- 567
13
votes
1
answer
1k
views
Compose many Geometric Transformations for 3D Graphics
I'm struggling to understand what would be a good way to compose several geometrical transformations to create a single TransformationFunction to be applied to a <...
- 37.4k
15
votes
2
answers
329
views
Globally loading packages while using a CellGroup as the default context
I have a notebook I wish to set up where the sections are conceptually related to each other. But, I wish to isolate them from each other programmatically, so that they do not interfere with one ...
- 34.1k
6
votes
4
answers
309
views
How can I get a list of the positions of the running minima in a list?
I want the positions of the (sequential) running minima in a list, that is, the positions of entries that have the minimum value of all the elements in that list, up to and including that entry. For ...
- 1,721
7
votes
3
answers
528
views
mixing color of individual parts of a function in DensityPlot
I have a function which is a sum of three terms and I want to plot it in a DensityPlot. However, I would like that the ColorFunction would be the RGBColor resulting of the mixed R color corresponding ...
- 6,133