Community Profile

# Dyuman Joshi

Last seen: Today Attivo dal 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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Risposto
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...

circa 3 ore fa | 1

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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...

circa 3 ore fa | 0

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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...

circa 8 ore fa | 0

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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...

circa 8 ore fa | 1

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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...

1 giorno fa | 1

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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...

1 giorno fa | 0

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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...

1 giorno fa | 1

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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...

2 giorni fa | 1

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

2 giorni fa | 0

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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...

2 giorni fa | 0

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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...

3 giorni fa | 0

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4 giorni fa | 0

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

4 giorni fa | 0

Risolto

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...

6 giorni fa

Risolto

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...

6 giorni fa

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%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')

6 giorni fa | 2

Risolto

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

6 giorni fa

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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 giorni fa | 1

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Risposto
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 giorni fa | 1

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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 giorni fa | 1

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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)

9 giorni fa | 1

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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...

9 giorni fa | 0

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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 giorni fa | 2

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

9 giorni fa | 1

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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 giorni fa | 0

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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 giorni fa | 2

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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 giorni fa | 1

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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 giorni fa | 0

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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 giorni fa | 0

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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 giorni fa | 0

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