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Generates a sawtooth wave with amplitude of 1 unit, a frequency of 2 Hz or (4pi radians per second) and a phase shift of pi/4 radian.
% amplitude amp = 1; % fundamental frequency f = 2; % time span of 10 periods T = 10/f; % phase shift theta = pi/4; % sa...

4年以上前 | 0

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Selection by circular indexing
function y = circularSelect(v, a, b) N = length(v); idx = a:b+N*(b<a); idx(idx>N) = idx(idx>N)-N; y = v(idx); end

4年以上前 | 0

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how to plot group delay with respect to omega_1 and omega_2 for 2-D dimensional digital filter
Use grpdelay. A built-in Matlab function.

4年以上前 | 0

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how to interpolate for increasing - decreasing type of data set
The function interp2 performs interpolation for 2D gridded data. It has the form Vq = interp2(X,Y,V,Xq,Yq), where X and Y contai...

4年以上前 | 0

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What is the result of the following command? x = 5 : -2 : 1
Your command has the form: x = x1:stp:x2, where x1 is the starting value, x2 is the end value, and stp is the step. Applying tha...

4年以上前 | 0

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how to detect circles in the provided .bmp image?
Read Detect and Measure Circular Objects in an Image

4年以上前 | 0

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reading specific lines from a .txt file
Use readmatrix and specify the 'Range' option. Assuming that you have a one-column txt file, you can use the following: A = rea...

4年以上前 | 1

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In table, how to count a number of specific values by year?
year = [repmat(2018, [3,1]); repmat(2019, [13,1]); repmat(2020, [4,1])]; win = [1;2;0;0;1;0;2;0;2;1;0;2;1;1;1;2;2;1;2;0]; T = ...

4年以上前 | 0

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Is there any clear explain and simple how to decide what is the best frequency resolution and how to chose the window size for this signal
The question is unclear. If you are asking about the number of points in your signal (i.e., number of samples), then it is sim...

4年以上前 | 0

質問

How can I set the labels of multiple axes without iteration?
Hello all, I have a figure with multiple uipanels, each with its own axes. How can I set the labels of all the pannels' axes at...

4年以上前 | 1 件の回答 | 0

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Find Elements in Range
Based on a question on <http://www.mathworks.com/matlabcentral/answers/ MATLAB Answers>. Find all the elements of a vector wh...

4年以上前

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Find the distance between runs
Another question inspired by the <http://uk.mathworks.com/matlabcentral/answers/?s_tid=gn_mlc_an answers forum>: A vector of ...

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Elements with highest local average
Input v is a row vector such that length(v)>3. Consider a sliding window of length 3 that is used to calculate the local average...

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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...

4年以上前

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Find common elements in matrix rows
Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...

4年以上前

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Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

4年以上前

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Weave two matrices together to form one matrix
Take the first column from matrix a, then insert the first column from matrix b, and so on. For example: a = [1 2 3 4]; b ...

4年以上前

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Check if a rotated array was originally sorted
Suppose a sorted array is rotated at some pivot unknown to you. For example, |[0 1 2 4 5 6 7]| might become |[5 6 7 0 1 2 4]|. ...

4年以上前

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S-T-R-E-T-C-H I-T O-U-T
You will be given a row of numbers (x), and a single number (n). Your job is to write a script that will stretch out the row of...

4年以上前

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Look Up Mapping
Let the input is A = {[] [] [] [1] []}; B = {'A','B','C','D','E'}; Mapped Output = 'D';

4年以上前

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Sorting integers by their digits (Level 4)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42815-sorting-integers-by-their-digits-level...

4年以上前

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Sorting integers by their digits (Level 3)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42811-sorting-integers-by-their-digits-level...

4年以上前

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Find longest run
Write a function longest_run that takes as input an array of 0's and 1's and outputs the length and index of the longest consecu...

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Assignment Problem
Given a matrix where row i corresponds to person i, and column j corresponds to task j and cell (i,j) corresponds to the time ta...

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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...

4年以上前

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Sorting integers by their digits (Level 2)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42809-sorting-integers-by-their-digits Probl...

4年以上前

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Sorting integers by their digits (Level 1)
Given a vector, v, of positive integers, return a vector, w, by sorting v in ascending order, such that primary sorting is done ...

4年以上前

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Find last non-zero in a given dimension
You are given a logical matrix *BW* _of any dimension_, and a dimension *dim*. You need to find the locations of the last non-ze...

5年弱前

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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.

5年弱前

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Zero Cross
Write a function that counts the number of times n a signal x changes sign. Examples x = [1 2 -3 -4 5 6 -7 8 -9 10 11] ...

5年弱前