# Dyuman Joshi

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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**Content Feed**

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 hours ago | 1

Changing from logarithmically spaced

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

12 hours ago | 0

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...

14 hours ago | 0

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...

1 day ago | 0

| accepted

how to download & install cvx_begin toolbox

Follow the instructions provided here - https://cvxr.com/cvx/download/

2 days ago | 0

trying to write complex equation with parentheses

You were missing a pair of parenthesis - syms gamma M k = gamma; Ma = M; % ...

3 days 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...

4 days 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...

4 days ago

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')

4 days 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...

4 days ago

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...

6 days ago | 1

| accepted

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); ...

6 days ago | 1

| accepted

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...

7 days ago | 1

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)

7 days ago | 1

| accepted

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...

7 days ago | 0

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...

7 days ago | 2

| accepted

Plot coordinates of a tif image

Try specifying the 'CoordinateSystemType' as 'geographic'. https://in.mathworks.com/help/map/ref/readgeoraster.html#mw_d0892e...

7 days ago | 1

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 ...

7 days ago | 0

| accepted

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...

8 days ago | 2

| accepted

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...

8 days ago | 1

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()...

8 days ago | 0

| accepted

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, [...

8 days ago | 0

| accepted

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...

8 days ago | 0

| accepted

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 ...

8 days ago | 1

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...

10 days ago | 0

| accepted

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)

10 days ago | 0

| accepted

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...

10 days ago | 1

Plotting several plots of respective ranges from an excel file into one single plot

opts = detectImportOptions('tempDataTrollhFlygpl.xlsx', ... 'Range', 'A10', 'VariableNamingRule','preserve'); opts = setva...

10 days ago | 1

I am starting with Matlab online. can I use Stoichiometry Tools?

I assume you are referring to this particular function provided in this FEX submission - https://in.mathworks.com/matlabcentral/...

10 days ago | 0

Changing names of excl files automatically and converting into cell array

If you want to rename the file when the file name is a number only, then the condition should be - if ~isnan(num)

10 days ago | 0

| accepted