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Dyuman Joshi


Last seen: Today Active since 2012

Mechanical Engineer IITG'20 Time zone - GMT +5.30 (IST)

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

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Answered
Can't quite figure out why my syms is giving me an error
The error is not with the symbolic part of your code, but how your code is arranged/structured. If any function(s) is(are) defi...

ungefär 14 timmar ago | 1

| accepted

Answered
Finding array index for a given array element does not work all the time
Welcome to the world of floating point numbers, where not all numbers can be represented exactly in binary form. See this threa...

ungefär 16 timmar ago | 0

| accepted

Answered
I can't really find why matlab won't plot this equation, I run into an error as soon as i try to run it
You need to use times, .* for multiplying arrays (of compatible sizes) element-wise - As the error states, mtimes, * is reserv...

ungefär 17 timmar ago | 1

| accepted

Answered
getting the nth term out of a sequence
As @Walter has warned, a carriage return character (\r) is being read along with the data - % Define the input and output file...

en dag ago | 1

Answered
Changing from logarithmically spaced
fs = 20e3; numFilts = 32; filter_number = 5; order = 4; CenterFreqs = logspace(log10(50), log10(8000), numFilts); figure p...

en dag ago | 0

Answered
I am trying to input my found critical point into the second derivative, but when I double it to get an actual value, I get an array of zeros.
"... but when I double it to get an actual value, I get an array of zeros." That is because dW is defined as an equation, not a...

en dag ago | 0

Answered
How to simplify a symbolic expression sum of terms involving the Heaviside function
For that you have to assume the same for 'm' as well - sympref('HeavisideAtOrigin', 1); syms m n positive integer s(n) = sym...

2 dagar ago | 0

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Answered
how to download & install cvx_begin toolbox
Follow the instructions provided here - https://cvxr.com/cvx/download/

4 dagar ago | 0

Answered
trying to write complex equation with parentheses
You were missing a pair of parenthesis - syms gamma M k = gamma; Ma = M; % ...

4 dagar ago | 0

Solved


Orthogonalize a 2x2 matrix using the Gram-Schmidt process
Use the Gram-Schmidt process to orthogonalize two linearly independent column vectors. Return two output column vectors that are...

5 dagar ago

Solved


Orthogonalize 3 column vectors using the Gram-Schmidt process
Use the Gram-Schmidt process to orthogonalize three linearly independent column vectors. Return three output column vectors that...

5 dagar ago

Answered
条件に沿って数値を変換する
%Random data for example in = randi(11, 1, 10) out = discretize(in, 0:11, [1 2 2 2 2 3 4 3 4 3 4], 'IncludedEdge', 'right')

5 dagar ago | 2

Solved


Update course numbers and abbreviations
Suppose that the educational institution where you teach purchases new software to handle many essential functions, including co...

5 dagar ago

Answered
What is the fourth array element denotes (specified as NaN in code below) in the input to fcm function of matlab 2019?
From the documentation of fcm(), for the syntax [centers,U] = fcm(data,Nc,options) - "If any element of options is NaN, the defa...

7 dagar ago | 1

| accepted

Answered
How to define a for loop for given FINDPEAKS problem ?
Try this - n=3; B = [num2cell(A,1); cell(n,2)] for k=2:n [B{k,1}, L] = findpeaks(B{k-1,1}); B{k,2} = B{k-1,2}(L); ...

7 dagar ago | 1

| accepted

Answered
How to calculate and display electricity used in a month using fprintf?
I assume the value R is an integer. If it is not, use an appropriate indentifier instead of '%d' (Refer to the documentation pag...

8 dagar ago | 1

Answered
List of increasing integers
dim = [2 2 4 2 2 2 2 2 2 2 2 2] int = 1:sum(dim) out = mat2cell(int, 1, dim)

8 dagar ago | 1

| accepted

Answered
Saving all variables in a single file (ideally an excel file)
One option is to save all the variables in a workspace to a .mat file. On the Home tab, in the Variable section, click Save Wor...

8 dagar ago | 0

Answered
Generate a logarithmic regression of xlsdata and plot it
That is not how you access data inside Tables. Go through this for more information - Access Data in Tables %% Provide the file...

9 dagar ago | 2

| accepted

Answered
Plot coordinates of a tif image
Try specifying the 'CoordinateSystemType' as 'geographic'. https://in.mathworks.com/help/map/ref/readgeoraster.html#mw_d0892e...

9 dagar ago | 1

Answered
Why do I get Parse error ?
The left parenthesis is supposed to be after the '@' symbol - f = @(x) x +2 f(3) The general syntax is name_of_function ...

9 dagar ago | 0

| accepted

Answered
how to write sqrtroot power 7 ?
Use power, .^ and define a Function Handle - g = @(x) sqrt(14.*x - 7).^7 g(2) g(1/2) g([1/2 2]) I suggest you take the f...

9 dagar ago | 2

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Answered
matlab에서 적분을 하고 싶습니다.
Use fplot - syms x; expr = 150/(0.06009*x^2+9.607); F = int(expr) %call fplot for the expression F, for x values in the ran...

9 dagar ago | 1

Answered
Not auto change sec(x) to 1/cos(x)?
Unfortunately, that is not possible. The symbolic engine directly evaluates the function sec() to 1/cos() (and csc() to 1/sin()...

9 dagar ago | 0

| accepted

Answered
Separating data to 3 different groups according to specific range of number in a variable
Note - NaN values are not included in the grouping load('SNR_GPS.mat') data = SNR_GPS(~isnan(SNR_GPS)) k = discretize(data, [...

9 dagar ago | 0

| accepted

Answered
How to reorder columns and array elements based on an array?
"1) reorder the columns in my original 1000x20 dataset based on this array, so that e.g. the species that was 14th in the origin...

10 dagar ago | 0

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Answered
How to make a sequence of time and the corresponding data from a data set where time is not provided sequentially
Sort the time data, and use the indices obtained (2nd output of sort) to get the corresponding velocity and density values, and ...

10 dagar ago | 1

Answered
How to set the length of minortick? The minortick seems to change with the length setting of the tick.
"... what does the latter indicate?" From the documentation page of Axes properties - Tick mark length, specified as a two-el...

11 dagar ago | 0

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Answered
How can I multiply a row vector with each of two column vectors?
t = [1 2]; s = [(1:3)',(4:6)']; out = kron(s,t)

11 dagar ago | 0

| accepted

Answered
how to plot table to line graph with dots ?
Convert the data to double data type, and use indexing to plot the data (Reference for syntax - https://in.mathworks.com/help/ma...

11 dagar ago | 1

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