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KSSV


Last seen: 2 días ago

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6.651 total contributions since 2011

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

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Answered
How to find the infelction points from the data
https://in.mathworks.com/matlabcentral/answers/383721-how-to-find-inflection-point-please-help

2 días ago | 0

Answered
Finding a specific row in a matrix based on user inputs?
Let A be your matrix of size 365*7. themonths = A(:,1) ; thedays = A(:,2) ; % Let us say I want 7th month and 7th day indi...

2 días ago | 0

Answered
complex function inverse plot
On solving it manually....we have: y = 1/(log(x)-0.1) ; x = exp(1/y+0.1) ; To plot: y=[5:0.01:6] ; x = exp(1./y+0.1) ; ...

3 días ago | 1

| accepted

Answered
MATLAB function that is equivalent to Maple's match function?
syms s ; A = 1; B = -1; LHS = 1/s-1/(s+1) ; RHS = A/s+B/(s+1) ; m = isequal(LHS,RHS) ;

3 días ago | 0

Answered
How to concatenate matrix in a loop
If the size of matrix is same always. iwant = zeros(95,13,5) ; for i = 1:5 iwant(:,:,i) = rand(95,13) ; end If the size ...

3 días ago | 0

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Answered
How can I fetch data from one matrix into another matrix?
A= [4 1 2 1] ; B= [1 100 200 2 300 400 3 500 600 4 700 800 5 ...

3 días ago | 0

Answered
how to superimpose matlab plot on a geotiff image.
Use hold on and plot.

3 días ago | 0

Answered
"Array indices must be positive integers or logical values." Error Message
((a(1-e^2)) This is not correct......I think you want ((a*(1-e^2)) close all clear clc %establish COEs a = 15000; e = ...

3 días ago | 1

Answered
Filtering through multiple vectors for a single set of values
1) Identify the common integer at the beginning of the vector sets between Q1 - Q6 (in this case, 3) Read about unique for this...

3 días ago | 0

Answered
Where can I find the earthquake data 'kobe' ?
load kobe ; Tha above should load your data.

3 días ago | 0

Answered
How to find mean of selected values in a table with row gap???
Let A be your 98816X1 column. N = length(A) ; n = 512 ; B = reshape(A,n,[]) ; iwant = mean(B) ;

3 días ago | 0

Answered
how can I solve this problem?
idx = x ==1 ; y(idx) z(idx)

3 días ago | 0

Answered
Making a Function for matrix
iwant = (max(A,[],2)-min(A,[],2))'

5 días ago | 0

Answered
Averaging z values for xy gridded data
A = [60.0000 50.0000 170.0000 180.0000 -16.1680 60.0000 50.0000 170.0000 180.0000 -8.6020 70.0000 60.0000 ...

5 días ago | 0

Answered
How do I sum the elements of each corner of a matrix?
iwant = A(1,1)+A(1,end)+A(end,1)+A(end,end)

6 días ago | 1

| accepted

Answered
Interpolation Question Regarding Value Alignment
Let t be your 4 seconds sampled time and y be your respective data. dt = 3 ; ti = min(t):dt:max(t) ; yi = interp1(t,y,ti)...

6 días ago | 0

Answered
I wish to integrate this expression
syms V T v U r S C t f = (V/(9.81*(T-T*V/v)-U*r*S*C(t^2-V^2)/2)) ; int(f,V)

9 días ago | 0

Answered
I need to plot a trajectory, of a point on circumference of a circle moving around its centre and centre is moving along its x-axis.
% cicle th = linspace(0,2*pi) ; r = 1. ; xc = r*cos(th) ; yc = r*sin(th) ; % center of circle movine along ax axes x...

9 días ago | 0

Answered
Searching point unknown on the grid
Read about knnsearch. Also interpolation works.

10 días ago | 0

Answered
Removing zeros from a binary array if length of zeros is lesser than a value
input = [0;0;0;0;0;0;0;1;0;1;1;1;0;0;0;0;0;0;1;1;0;0;0;0] ; idx = input==1; % get the locations of 1 % split zeros and on...

10 días ago | 0

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Answered
how can i change this code
in = 0 ; pivot = table(in,index); In the above line you have indexed in to zero. There is no zero and negaitve indices in MAT...

10 días ago | 0

Answered
How to take the inverse of each individual array value and store it to a new array?
If R is value, if you want inverse use C = 1/R ; If R is an array use: C = 1./R ; In your case..use Conductances = 1....

10 días ago | 0

Answered
selecting specific rows from a matrix corresponding to the columns of other matrix
Let A abd B be your matrices of size 40*2 and 25000*9. [m,n] = size(A) ; C = cell(m,1) ; for i = 1:m C{i} = B(A(i,1...

10 días ago | 0

| accepted

Answered
Vector plot over a surface plot
TT = hypot(qx, qy); figure() pcolor(x, y, TT); xlim([-7 7]); ylim([-5 5]) colormap jet colorbar view(2) hold on quiver(...

10 días ago | 0

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Answered
Calculate the length of symbolic expression
S = char(df) ; % convert sym to string idx = strfind(s,' ') ; % get empty spaces S(idx) = [] ; % remove the mepty sp...

11 días ago | 0

| accepted

Answered
how to plot euler formula in matlab?
i = linspace(0,1,100) ; y = exp(100*i*pi) ; plot(i,y)

11 días ago | 0

Answered
K-Means Matlab cluster assignment
If idx are the indices and P are the points you have. figure hold on for i = 1:4 plot(P(idx==i,1),P(idx==i,2),'.') ; ...

11 días ago | 0

Answered
How can I limit a set of input data, 6 values, to a min and max point and as an integer
if min(user)<1 || max(user)>59 error("Check the input") endif

11 días ago | 1

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Answered
Error to applying ismember for cell arrays
load("example.mat") ; N = length(A) ; A1 =zeros(N,1) ; for i = 1:N A1(i) = str2num(A{i}') ; end B1 = cell2mat(B)' ;...

11 días ago | 0

| accepted

Answered
Converting flowchart to matlab code
x = 0 ; % your initial x value y = 100 ; % your fixed y value t0 = 0 ; % initial time dt = 0.00025 ; % time step t =...

11 días ago | 0

| accepted

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