Dyuman Joshi

Last seen: Today | Con actividad desde 2012

Followers: 4 Following: 4

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Mechanical Engineer IITG-20 | Moderator - MATLAB Cody since Jan 2021 | Time zone - IST (GMT +5.30)

Programming Languages:
Python, MATLAB
Spoken Languages:
English, Hindi
Pronouns:
He/him
Professional Interests:
Fluid Dynamics, Aerospace Engineering, Computational Fluid Dynamics (CFD), Hydraulics and Pneumatics

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Why I am not getting the same result for an integral of a piecewise function?
1 - It should be aux1 - (aux2 + aux3) 2 - The function is not vectorized properly, which provides incorrect results. I have mod...

6 meses hace | 0

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array generation using logics.
x = [0 10 20 30 0 10 20 30 40 0 10 20 30 40 50 0 10] y = x; idx = [1 find(diff(x)~=10)+1 numel(x)] for k=1:numel(idx)...

6 meses hace | 0

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How programmatically create an array from variable-length vectors?
Here's a method to import data from a sequence of files - %Read all the mat files in the directory Files = dir('*.mat'); %...

6 meses hace | 0

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How to substitute a variable into a syms function?
Define the variable as a symbolic variable and then substitute - syms Vpo Von Dp Dn ws Lp Cps Ll Lm Vsecm Isec_real Isec_imag ...

6 meses hace | 0

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How do I change the format of symbolic output
Change the symbolic preference of Type-setting as follows - syms x y sol = solve(y-x^2,x) %Preference changed (Default v...

6 meses hace | 0

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Turn sequence into a loop
A better approach would be to vectorize, see below. (I assume all the arrays to be used have compatible dimensions for operation...

6 meses hace | 0

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如何得到361x91数组中重复最大值的位置
Use find - %Sample data mat = magic(4); mat = [mat; 1 4 9 16] %Get the maximum value val = max(mat, [], 'all') %% Find th...

7 meses hace | 1

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Read text file line by line to columns
Use readmatrix (available from R2019a onwards) to read the data and transform it as per need - in = readmatrix('RANCHOD - Copy...

7 meses hace | 2

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行列の要素数を変更し、それぞれを違う行列として表示するにはどうすればよいですか
Preallocate a cell array, define each cell element accordingly and use indexing to access the data - %Number of arrays n = 10...

7 meses hace | 0

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Where can I find the documentation for polling methods applicable to paretosearch?
From the User's Guide of Global Optimization Toolbox, available here - https://in.mathworks.com/help/pdf_doc/gads/index.html (Pa...

7 meses hace | 0

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Subs does not work in my code.
You can vectorize operations in the code - function [sMnew] = Cubic(k,M) n = 3*k+1; x = sym('x'); c = sym( 'c', [1 M+3]); ...

7 meses hace | 0

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Randomly giving "ans" value but i dont want that
"How can i prevent the creation of the "ans" ?" When calling a function with multiple outputs without specifying the outputs, o...

7 meses hace | 1

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How to plot points with corresponding colour
(Assuming there are only red and blue colors for the plot) Use logical indexing - %Check which elements of B are red idx = str...

7 meses hace | 1

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使用limit函数求极限提示不允许不同类型之间赋值，怎么解决？
I scrolled across the image - jie is already defined as a struct (possibly in the code before this particular lines), thus you c...

7 meses hace | 0

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How can I plot graph with lines of different color each using for loop?
You are over-writing the figure in each iteration, thus you only get the plot for a single iteration (i.e. the last one). Call ...

7 meses hace | 0

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How to create random sequence?
Use randn to generate the sequences and modify it accordingly - avg = 817e-9; sd = 10e-9; N = 50; seq = avg + sd*randn(1,...

7 meses hace | 0

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I need to make a function for compound interest using for
In case you want the final output - format shortg money=1000; for k=1:10 money=money*1.08; end money In case you w...

7 meses hace | 0

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How to extract data from a 3D Array?
Use logical indexing - %Sample data p = 5; q = 6; r = 4; y = rand(p,q,r)-1; y(:, :, [2 r+1]) = zeros(p,q,2) %Check i...

7 meses hace | 1

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for構文
That is because you are overwriting the files in each iteration of the for loop. Pre-allocate the output to assign data to it a...

8 meses hace | 2

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'입력 인수가 부족합니다' 이 오류를 해결하고 싶어요.
I have made some changes to your code, please check the code below and refer to the comments for information - syms('x') %%...

8 meses hace | 0

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Versions de Matlab compatibles Windows 11 et versions non recommandées pour Windows 11
MATLAB was introduced in Windows 11 from R2021b onwards. So, any versions before it i.e. R2021a or earlier, won't work on it. ...

8 meses hace | 0

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Combining excel files with unequal rows
Try outerjoin - %Data from the images attached for example %Use readtable() to read the data as tables directly Name = ["Ada...

8 meses hace | 0

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What is the last day of support for a MATLAB release (EOL - End of Life)?
This is not a good answer, @MathWorks Support Team - It's like saying pi is the ratio of circumference and diameter, when the qu...

8 meses hace | 0

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複素数の事前割り当て
You can use this syntax of zeros() to preallocate the data as a complex array -https://in.mathworks.com/help/matlab/ref/zeros.ht...

8 meses hace | 1

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How to find the frequency of individual elements in a matrix?
MATLAB has a in-built function for it - histogram, which does both the operations in single command - s = load('micro2d (2).ma...

8 meses hace | 0

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Assumption on another symbolic Variable affecting a previous assumption
Because assume over-writes assumptions. From the Tips section in the documentation page - "assume removes any assumptions pr...

8 meses hace | 2

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MATLAB Grader: What should my assessment return when it determines a student solution is correct or incorrect?
You can use assert to check a condition (whether the title contains a particular text or not) and throw a (custom defined) error...

8 meses hace | 1

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To find answer using matlabfunction
You get the wrong value because the order of inputs is not correct. By default, matlabFunction uses alphabetical order for the ...

8 meses hace | 0

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convert a .mat to excel file
(Assuming single data set in each file) Read the data from the files and use writematrix to save the data in excel files accord...

8 meses hace | 0

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Matlab cannot recognize variable
"Why is Lambda unrecognized here?" Because the while loop is not initiated, as the condition is not satisfied. As the while lo...

8 meses hace | 1

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