KSSV

INCOIS

6,444 total contributions since 2011

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

KSSV's Badges

Answered
Reassigning values in a matrix
Read about max toget the maximum value in the array. Read about inequalitites >and < to get the other task solved. Read abou...

12일 ago | 0

Answered
How to normalize two waves on a single plot
t=0:0.001:0.05; y= 11.18*cos(60*pi*t+26.565); y2= -60*pi*11.18*sin(60*pi*t+26.565); title('Phasor Waveforms') y=y/max(y) ;...

12일 ago | 0

Answered
How to find intersection of 2 non-equally sized arrays in matlab
Use interX from here: https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections?focused=5165138&tab=function...

17일 ago | 0

Answered
How to create multiple cdfplot in one graph?
figure hold on lgd = cell(size(NPV_all,2),1) ; for ki = 1:size(NPV_all,2) cdfplot(NPV_all(:,ki)); lgd{ki} = strca...

18일 ago | 0

| accepted

Answered
How can I use "eig" in symbolic variables?
syms a b l A=[2*a+3*b ,2*b+3*a ; a+b,a-b] ; B=[5*a+8*b, b^2+5 ; a-5*b,2*b+3*a] ; C = A-l^2*B ; eqn= det(C)==0 ; iwant = s...

18일 ago | 0

Answered
Fitting the data so that one a single continuous line is achived
I = imread('Annotation 2019-09-04 112619.png') ; I1 = imcrop(I) ; % crop to remove white borders present around the image I1...

18일 ago | 0

Answered
How Can I put some numbers in a sym and sum its cells?
syms a b c d B = [ 1 2 ; 3 4] ; x = B(:,1) ; y = B(:,2) ; A = [ a*(x(1)^2)+y(1) , b*(y(1)^3)+x(1) ; d*(x(2)^2)*y(2) ,...

19일 ago | 0

Answered
storing function outputs from a nested for loop
maxDisp_x=cell(Nrt,lhsN,NGM); for scenario=1:Nsnro for i=1:Nrt ....... for j=1:lhsN ......

19일 ago | 0

| accepted

Answered
find t and Use a graphical method to locate the initial estimate
syms t ; v = 4.8626; w = 4.4721; x=0.17; f = x - t*v*exp(-w*t)==0 ; s = double(solve(f)) ;

19일 ago | 0

Answered
Bug in matrix indexing?
USe this: test = 1.0e+03 *[1.1506 -0.0094 -0.0043 -0.0012 -0.0001 -0.0007 0.0003 0.0004 -0.0082 0.0...

19일 ago | 0

Answered
Difference and probability in plot
thedifference=-5:1:5 ; N = length(thedifference) ; probability=zeros(N,1) ; for i = 1:N thediff = thedifference(i) ;...

20일 ago | 0

| accepted

Answered
A statement under "for" gets skipped during the last loop
YOu are changing the loop index ii inside the if...else statements.......that is now allowed... function coded = caesar (v,s) ...

24일 ago | 0

Answered
I want to load multiple text files into variable cell array
files = dir('*.txt') ; N = length(files) ; iwant = cell(N,1) ; for i = 1:N filename = files(i).name ; startRow ...

25일 ago | 1

| accepted

Answered
How can we make a rhombus in the middle?
Play with the points in R....you give the vertices of vertices..you will get it. fr=zeros(512,512); % Rhombus points R = ...

25일 ago | 0

| accepted

Answered
linear interpolation without meshgrid
Read this: https://in.mathworks.com/help/matlab/ref/scatteredinterpolant.html

25일 ago | 0

| accepted

Answered
How can I put two noises in an image?
How about imshow((tp+k)/2)

25일 ago | 0

| accepted

Answered
How can I place a quiver plot on top of a triangular surface (trisurf) plot?
USe 2D plot: patch('faces',tri(:,2:4),'vertices',[Xp' Yp'],'facevertexcdata',z','facecolor','interp','edgecolor','none') ; ...

25일 ago | 1

| accepted

Answered
how to get variable value in plot automatically
x = 0:10 ; figure hold on for i = 1:3 y = i*x ; plot(x,y) end legend OR x = 0:10 ; figure hold on for i =...

27일 ago | 0

Answered
How can I compare a set of variables?
x1= 1; x2= 3; x3= 4; x4= 3; x5= 3; x6= 1; x7=2; x = [x1 x2 x3 x4 x5 x6 x7] ; [c,ia,ib] = unique(x) ; iwant = cell(le...

약 1달 ago | 0

Answered
location of logical matrix
Read about ismember idx = round(rand(10,2)) ; vec = [1 1] ; [c,ia] = ismember(idx,vec,'rows') ; iwant = find(c) ; idx(...

약 1달 ago | 0

Answered
comparing two data sets and extract specific data from one of them
YOu can make your blue lines a closed polygon.......and use inpolygon to get the points lying inside and on the blue lines. Read...

약 1달 ago | 0

| accepted

Answered
symbolic derivative with respect to time
syms x(t) f = sin(x(t)) diff(f,t)

약 1달 ago | 1

| accepted

Answered
How to change non zero value into 0?
If A is your matrix. To get non-zero indices use: idx = A>0 ; To replace them to zero use: A(idx) = 0 ;

약 1달 ago | 0

Answered
can we use Xlswrite in symbolic variables?
syms x_1 y_1 A_sym = sym(zeros(2,2)); A_sym(1,1) = x_1; A_sym(2,1) = x_1 * y_1 ; A_sym(2,2) = y_1; sym_cell = arrayfun...

약 1달 ago | 1

Answered
make the image to smallest 8*8 blocks
Refer here: https://in.mathworks.com/matlabcentral/answers/362262-i-have-a-32-32-matrix-i-want-to-take-mean-of-each-4-4-so-tha...

약 1달 ago | 0

| accepted

Answered
How to create multiple .dat files using matlab?
for i = 1:10 filename = strcat(num2str(i),'.dat') end

약 1달 ago | 0

Answered
How to find avergae of thresholded elements only from a matrix?
Let A be your matrix......say you want values below a threshold val. idx = A<val ; themean = mean(A(idx)) ;

약 1달 ago | 2

| accepted

Answered
How can I interpolate with a Matrix and a Vector to another vector?
YOu see, you cannot use Enthalpy as you have used, because it is not a valid meshgrid. Reather, you can treat the data as scatte...

약 1달 ago | 0

Answered
Surface plots inside loop
YOu can follow a samll demo code given here: [X,Y,Z] = peaks(100) ; surf(X,Y,Z) %% Make surface discontinuous for demo id...

약 1달 ago | 0

Answered
find slope sign change of emg signal
If (t,x) is your time and signal. dt = diff(t) ; dx = diff(x) ; slope = dx./dt ; slope_sign = sign(slop) ;

약 1달 ago | 0