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KSSV


Last seen: Today Attivo dal 2011

https://sites.google.com/site/kolukulasivasrinivas/ Professional Interests: Mathematical Computing

Programming Languages:
Python, MATLAB, Fortran
Spoken Languages:
English, Hindi, Telugu

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  • MATLAB Mini Hack 2022 Participant
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  • Most Accepted 2021
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Risposto
2D array to 1D with rows appending after another row
A =[1 2 3 ; 4 5 6] ; iwant = reshape(A',1,[])

circa 4 ore fa | 1

| accettato

Risposto
how to plot such figure in MATLAB?
Read about xticklabels

circa 5 ore fa | 0

Risposto
Vector plots by Quiver in MATLAB
[X,Y,Z] = peaks(100) ; [u,v] = gradient(Z) ; w = sqrt(u.^2+v.^2) ; pcolor(X,Y,w) ; shading interp ; colormap(jet); hol...

circa 21 ore fa | 1

Risposto
How can I avoid using for loop in this functions
function y=Besselj_approx(n,z) i = n ; y=zeros(1,length(n)); y(1:end)=-z.^2/4+1; y(i>0) = 1./gamma(i(i>0)+1).*(z/2).^i(i>0);...

circa 22 ore fa | 0

Risposto
How do I save a file in excel to matlab current folder?
T = readtable('myfile.xlsx') ; T

3 giorni fa | 0

Risposto
Given x= rcos(𝛼) ; y=rsin(α); write MATLAB program to plot a circle of unit radius (r=1).
This is a simple homework... You should do it your self. Read about: Linspace for making angle between 0 to 360 i.e. 0 to 2*pi ...

3 giorni fa | 1

Risposto
Plotting 3D by rotate 2D plot around y-axis
This might be useful. Checkout: https://in.mathworks.com/matlabcentral/communitycontests/contests/4/entries/4996

4 giorni fa | 0

Risposto
Averaging data between two integer and corresponding column of a matrix
A = [1 2 3 4 5 6; 1.234 1.11 1.3 2.31 2.3 2.4]' ; idx = fix(A(:,2))==2 ; mean(A(idx,1))

6 giorni fa | 0

Risposto
How to make a linear regression coefficient algorithm
x = 1:10 ; y = rand(1,10) ; [a,b] = linreg(x,y) ; % Check p = polyfit(x,y,1) ; [a b ; p(2) p(1)] function [alpha, b...

6 giorni fa | 0

Risposto
How to create a custom colormap ("seismic" from python)
Refer this: https://in.mathworks.com/matlabcentral/fileexchange/45208-colorbrewer-attractive-and-distinctive-colormaps https:/...

6 giorni fa | 1

| accettato

Risposto
what is the meaning of this error? how to stop this error?
You have copied this function named 'Forward_model' under a script/ code whose file name is also same as the function i.e. Forwa...

9 giorni fa | 0

Risposto
Keeping same colors for the same groups in different group scatter plot
P = rand(1000,2) ; x = P(:,1) ; y = P(:,2) ; idx = kmeans(P,4) ; figure h = gscatter(x,y,idx) ; % Get colors C = resha...

10 giorni fa | 1

| accettato

Risposto
Why doesn't it work ? Please help
dt = 0.01; t = 4; T = 0:dt:t; % First Quarter r1 = 0:dt:t/4 ; p1 = sin(pi.*r1) ; plot (r1,p1) % Define second Qua...

11 giorni fa | 0

Risposto
matlab polyfit multiple sets of y data
Run a loop for each set..... Let y be your mxn data and x be your 1xn data. p = cell(m,1) ; for i = 1:m p{i} = polyfut...

11 giorni fa | 0

Risposto
Can't run my 'if, elseif, else' code
score= randi(100); if score < 20 grade = 'D'; elseif score < 40 grade= 'C'; elseif score < 60 grade= '...

12 giorni fa | 0

| accettato

Risposto
cell array into matrix
Read about cell2mat.

12 giorni fa | 0

Risposto
Not enough input arguments
f = @(x,y) x.*y + 10*sin(x).*cos(y); x = linspace(0,2*pi) ; y = linspace(0,2*pi) ; [X,Y] = meshgrid(x,y) ; Z = f(X,Y) ; su...

12 giorni fa | 1

Risposto
can you help me to solve this equation?
syms x P = sqrt(27.8*exp(5*x)-1) == cos((120*x^2+sqrt(2*x))/(17*x-65))^(-1) ; s = vpasolve(P,x)

20 giorni fa | 0

Risposto
Syntax problem with a user-defined function with sine
function r = my_function(thet) r = pi*(3-sin(theta)^5) ; end Save the above, it will be saved on he name my_function.m. ...

24 giorni fa | 0

Risposto
Matrix multiplication gives different result than manual dot products with each column
As you are comparing floatting point number, you should not use isequal. You should proceed like shown below: N = 1000; B = 10...

25 giorni fa | 0

Risposto
How to plot the streamlines and arrow surface in MATLAB from columns of data?
clc ; clear all ; % T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1311670/streamlines%20plot.txt...

25 giorni fa | 0

| accettato

Risposto
trying to align multiple sin waves onto same graph with the period of the wave on the x axis.
Take same time array for all the waves. g = 9.807; T = 11; H = 4; d = 30; CD = 0.85; CM = 1.77; Rho = 1025; D = 1; u =...

26 giorni fa | 0

Risposto
Double X-axis(t,p1) and single Y-axis(p2) depending on t
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1309930/b1.xlsx') ; t = duration(T.Time); p1 = T....

27 giorni fa | 0

Risposto
How to apply the same style/color and axes labels to all subplots?
colors = ["k"; "r";"g";"r";"g"]; lines = ["-"; "-";"-";"--";"--"]; tiledlayout(2,2); ax(1) = nexttile ; plot(rand(10,1)...

27 giorni fa | 1

| accettato

Risposto
Generating lognormal random numbers
Read about lognrnd

28 giorni fa | 0

Risposto
How to get the decimal values using solve in MATLAB
Read about vpasolve, double.

28 giorni fa | 1

Risposto
How do I repeat the comand for another line
dt = dx1./v; % let dt be 10x1 array m = length(dt) ; n = 60001 ; temp0 = zeros(m,n) ; for i = 1:n tempo(:,i) = 0:dt...

28 giorni fa | 0

| accettato

Risposto
Create a point with a number inside
th = linspace(0,2*pi) ; x = cos(th) ; y = sin(th) ; % Make numbers idx = 1:5:length(th) ; figure hold on plot(x,y,'k',...

circa un mese fa | 0

Risposto
Pulling Vectors From 3D Matrix Based on Indicies
A = rand(30,40,10) ; iwant = squeeze(A(13,33,:))

circa un mese fa | 1

Risposto
How to have two legends on the same plot?
figure hold on plot(rand(1,10),'r') plot(rand(1,10),'b') legend('One','Two')

circa un mese fa | 1

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