KSSV

Last seen: Today | Active since 2011

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

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

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Answered
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...

ungefär 16 timmar ago | 1

Answered
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);...

ungefär 17 timmar ago | 0

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

3 dagar ago | 0

Answered
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 dagar ago | 1

Answered
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 dagar ago | 0

Answered
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 dagar ago | 0

Answered
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 dagar ago | 0

Answered
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 dagar ago | 1

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Answered
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 dagar ago | 0

Answered
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 dagar ago | 1

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Answered
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 dagar ago | 0

Answered
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 dagar ago | 0

Answered
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 dagar ago | 0

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Answered
cell array into matrix
Read about cell2mat.

12 dagar ago | 0

Answered
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 dagar ago | 1

Answered
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 dagar ago | 0

Answered
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 dagar ago | 0

Answered
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 dagar ago | 0

Answered
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 dagar ago | 0

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Answered
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 dagar ago | 0

Answered
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 dagar ago | 0

Answered
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 dagar ago | 1

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Answered
Generating lognormal random numbers
Read about lognrnd

28 dagar ago | 0

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

28 dagar ago | 1

Answered
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 dagar ago | 0

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Answered
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',...

ungefär en månad ago | 0

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

ungefär en månad ago | 1

Answered
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')

ungefär en månad ago | 1

Answered
Please help, I keep getting this error... Error using plot Not enough input arguments.
Months=["Jan";"Feb";"March";"April";"May";"June";"July";"Aug";"Sept";"Oct";"Nov";"Dec"]; EnergyDailyAve = [33.677 76.714 69.6...

ungefär en månad ago | 0

Answered
Calculate area under peak
Read about the functions polyarea, trapz. Provde the (x,y) data of the curve for which you want to calculate the area.

ungefär en månad ago | 0

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