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Dyuman Joshi


Last seen: Today Con actividad desde 2012

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

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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  • Number Manipulation I Master
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Content Feed

Respondida
Solve is not providing correct solution
When you use vpa on symbolic numbers, you lose precision. When you convert the symbolic numbers to double precision values usi...

1 día hace | 1

Respondida
the matrix only works till days= 16 then when the days=17 or bigger the output is 0 on all the values in the matrix
In the default display format (i.e. short), the numbers are displayed with 4 digits after the decimal. Thus when the differenc...

1 día hace | 0

Respondida
How to interpolate only NaN values with one hole?
fillmissing is a better fit here - %Note that the data you have provided is not valid %I have added another element to make i...

1 día hace | 1

Respondida
How to vectorize this nested for loop?
%Original Approach b=0; min1 = 1; max1 = 1; pair = []; for n = -min1:max1 for m = -min1:max1 if n+m...

1 día hace | 1

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Respondida
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...

2 días hace | 1

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Respondida
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...

2 días hace | 0

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Respondida
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...

2 días hace | 1

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Respondida
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...

3 días hace | 1

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

3 días hace | 0

Respondida
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...

3 días hace | 0

Respondida
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...

4 días hace | 0

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

5 días hace | 0

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

6 días hace | 0

Resuelto


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...

7 días hace

Resuelto


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...

7 días hace

Respondida
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')

7 días hace | 2

Resuelto


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

7 días hace

Respondida
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...

8 días hace | 1

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Respondida
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); ...

8 días hace | 1

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Respondida
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...

9 días hace | 1

Respondida
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)

10 días hace | 1

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Respondida
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...

10 días hace | 0

Respondida
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...

10 días hace | 2

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

10 días hace | 1

Respondida
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 ...

10 días hace | 0

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Respondida
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...

10 días hace | 2

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Respondida
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...

10 días hace | 1

Respondida
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()...

11 días hace | 0

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Respondida
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, [...

11 días hace | 0

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Respondida
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...

11 días hace | 0

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