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Removing rows from a matrix is easy - but what about inserting rows?
Assume A is a 5-by-5 matrix. A([2,4],:) = [] is a quick way to remove rows 2 and 4. Can you find a quick way to insert rows into...

oltre 8 anni fa

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N-Dimensional Array Slice
Given an N-dimensional array, _A_, an index, _I_, and a dimension, _d_, return the _I_ th elements of _A_ in the _d_ dimension. ...

oltre 8 anni fa

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Permute diagonal and antidiagonal
Permute diagonal and antidiagonal For example [1 2 3;4 5 6;7 8 9] -> [3 2 1;4 5 6;9 8 7] WITHOUT diag function (and variable n...

oltre 8 anni fa

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Matrix with different incremental runs
Given a vector of positive integers a = [ 3 2 4 ]; create the matrix where the *i* th column contains the vector *1:a(i)...

oltre 8 anni fa

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Rotate input square matrix 90 degrees CCW without rot90
Rotate input matrix (which will be square) 90 degrees counter-clockwise without using rot90,flipud,fliplr, or flipdim (or eval)....

oltre 8 anni fa

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Set some matrix elements to zero
First get the maximum of each *row*, and afterwards set all the other elements to zero. For example, this matrix: 1 2 3 ...

oltre 8 anni fa

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Make an awesome ramp for a tiny motorcycle stuntman
Okay, given a vector, say v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 3 6 9 11 0; 6 9 ...

oltre 8 anni fa

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surrounded matrix
With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

oltre 8 anni fa

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Reverse the elements of an array
Reverse the order of elements in an array: eg: input X = [ 1 2 3 ; 4 5 6 ; 7 8 9 ] o...

oltre 8 anni fa

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Flip the main diagonal of a matrix
Given a n x n matrix, M, flip its main diagonal. Example: >> M=magic(5); >> flipDiagonal(M) 9 24 1 ...

oltre 8 anni fa

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Back to basics 23 - Triangular matrix
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, return a matrix with all elements above a...

oltre 8 anni fa

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Remove NaN ?
input -> matrix (n*m) with at least one element equal to NaN; output -> matrix(p*m), the same matrix where we deleted the enti...

oltre 8 anni fa

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Back to basics 21 - Matrix replicating
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

oltre 8 anni fa

Risposto
How to align two different sets of data whilst allowing a +- 10% range?
Hi)) %converting and renaming of variables t=table2array(table1); m=matrix2; %0.1 - range of choosing d=1+0.1*[...

oltre 8 anni fa | 1

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Risposto
Find the index of a string is structure
As i understand you right, the field textdata contains cell array with some strings. Let figure that |A| - structure. Then if y...

oltre 8 anni fa | 1

| accettato

Risposto
How to count continuous non zero elements whilst keeping the date of the first non-zero value
Hi. It's the simplest but not the shortest code for this problem. k=A(1,6)~=0; for i=1:size(A,1) if A(i,6)~=0&...

oltre 8 anni fa | 1

| accettato

Risposto
GA is not working...Function i have written separately calling in main program but not worked??
There are two version of code which are working but do not converge. First: xdata =[ 1 2 3 4 5 6] ; ydata=(1./(xd...

oltre 8 anni fa | 0

| accettato

Risposto
How can I put the values that I made in a for and if loop into a vector?
Code improvements: %Range of i for different calculation formulas FirstRange=[1:L_1]; SecondRange=[L_1:L]; %Create...

oltre 8 anni fa | 0

Risposto
merging two text files and generate 1000 copies of the new text (or dat) file
You should to read help for <https://www.mathworks.com/help/matlab/ref/sprintf.html sprintf> and <https://www.mathworks.com/help...

oltre 8 anni fa | 1

| accettato

Risposto
I can't open .fig files .m files nothing
You should to click on the "Browse" button and specify the path to your matlab program file which may be "C:\Program Files\MATL...

oltre 8 anni fa | 0

| accettato

Risposto
could anyone tell me how to have equal spacing of selected numbers with respect to axis.
You can compress data between 2 and 23 ticks roughly by %before plotting XData(XData>2&XData<23)=(XData(XData>2&XData<23)-...

oltre 8 anni fa | 0

Risposto
What does the ω_r represent in the Mechanical System Equation provided in the Permanent Magnet Synchronous Machine
Hello, That is also mechanical speed because that is equation of mechanical speed. Maybe in the full system of equations of S...

oltre 8 anni fa | 0

Domanda


Error is occured when I changed version of Matlab
I have a lot of the code which work correctly in the Matlab 2013b but when I tried evaluate it on the machine with Matlab 2016a ...

oltre 8 anni fa | 1 risposta | 0

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Domanda


Does symbolic function inv() evaluated in multithread?
Hello, as noted here <https://www.mathworks.com/matlabcentral/answers/95958-which-matlab-functions-benefit-from-multithreaded...

oltre 8 anni fa | 1 risposta | 0

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Missing five
Convert decimal numbers to a base-9 notation missing the digit *5* <<http://www.alfnie.com/software/missing5.jpg>> Too man...

quasi 9 anni fa

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Is this is a Tic Tac Toe X Win?
For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

quasi 9 anni fa

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Pentagonal Numbers
Your function will receive a lower and upper bound. It should return all pentagonal numbers within that inclusive range in ascen...

quasi 9 anni fa

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Spot the First Occurrence of 5
This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate <https://...

quasi 9 anni fa

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I Plead the Fifth
Write a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty st...

quasi 9 anni fa

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Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer whi...

quasi 9 anni fa

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