Question
Can Matlab cellular functions -like cellfun- work with non linearly spaced indices ?
Hi, I would like to affect a value to some non linearly indexed elements of a vector with using a cell array. At the moment ...
12 months ago | 3 answers | 0
3
answersSubmitted
Simplex convergence animation
Simplex algorithm convergence animation demo on Matlab 'peaks' test surface
1 year ago | 1 download |
Solved
Construct an index vector from two input vectors in vectorized fashion
Create an index vector defined by two input vectors, one defining the beginnings of one or more index ranges, and the other defi...
1 year ago
Solved
Fill a zeros matrix
The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value. 3 Inputs: ...
1 year ago
Solved
"Low : High - Low : High - Turn around " -- Create a subindices vector
Let two vectors *lo* and *hi* be given. The job is to create a index vector like so idx = [lo(1):hi(1) lo(2):hi(2) ...]...
1 year ago
Solved
Matrix indexing with two vectors of indices
Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).
1 year ago
Solved
Sum My Indices
Given inputs M and N (in that order), output an MxN matrix whose entries are equal to the sum of their indices. Example input...
1 year ago
Solved
Getting the indices from a matrix
Inspired by Problem 645. Getting the indices from a matrix. Given a matrix A (or a vector), return the indices (always in row...
1 year ago
Solved
First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero i...
1 year ago
Solved
Replicate elements in vectors
Replicate each element of a row vector (with NaN) a constant number of times. Examples n=2, A=[1 2 3] -> [1 1 2 2 3 3] ...
1 year ago
Solved
Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...
1 year ago
Solved
Getting logical indexes
This is a basic MATLAB operation. It is for instructional purposes. --- Logical indexing works like this. thresh = 4...
1 year ago
Submitted
alGolbach
Algorithm to compute and list every Goldbach couples of prime numbers which sum equals the given -even- input
1 year ago | 1 download |
Answered
Quickest way for alternate indexing a vector
Thank you all for your interest and answers :-) I am going to test them, pick the best in my case, and then choose for the co...
Quickest way for alternate indexing a vector
Thank you all for your interest and answers :-) I am going to test them, pick the best in my case, and then choose for the co...
1 year ago | 0
Question
Quickest way for alternate indexing a vector
Hey, I am looking for the quickest way to create a vector like this : u = [5 7 11 13 17 19 23 25 ...
1 year ago | 5 answers | 0
5
answersSubmitted
Projective geometry demo
A "pedagogic" demo of projective geometry showing some mathematical objects projections
2 years ago | 3 downloads |
Submitted
Mesh ovoid
Function to compute, display, and save a meshed ovoid
2 years ago | 1 download |
Answered
Apparent distance conservation in Matlab plot window while rotating 3D objects
Ok I realized I have to be even clearer. I am going to eplore the camera toolbar possibilities -which I didn't really know unti...
Apparent distance conservation in Matlab plot window while rotating 3D objects
Ok I realized I have to be even clearer. I am going to eplore the camera toolbar possibilities -which I didn't really know unti...
2 years ago | 0
Submitted
Apollonian gaskets
Function to compute and display the apollonian gasket of any 3D triangle or 3D regular polygon
2 years ago | 2 downloads |
Submitted
chat with HAL9000 !
chat with HAL9000 and try to survive it ! ^_^
2 years ago | 1 download |
Question
Apparent distance conservation in Matlab plot window while rotating 3D objects
Hey, When you plot a 3D object in Matlab and turn it around the apparent distance to this object will change, even if you set...
2 years ago | 2 answers | 0
2
answersQuestion
Rendering problem with surf and trisurf
Hey, When I use surf or trisurf functions to plot a 3D plane made of several ploygons (triangles or squares for instance), I ...
2 years ago | 1 answer | 0
1
answerSubmitted
isinside2Dset
Function to check if a vertex is located inside or outside a given 2D set.
2 years ago | 1 download |
Solved
generate number in particular way
A = [1 5 2 7]; MAX = 10; generate a array Y = [1 2 2 2 2 2 3 3 4 4]; i.e. total eleme...
2 years ago
Solved
Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.
2 years ago
Submitted
3D printable Christmas star
Function to compute, display and save a 3D printable Christmas star.
2 years ago | 1 download |
Solved
Build edges list
Input T is a triangulation connectivity indices list (triplet list of indices -positive integers-, each index refering to a vert...
2 years ago