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KSSV


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8,467 2011 이후 총 참여 횟수

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

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답변 있음
Element subtraction of same matrix
A = [2,5; 3,8]; B = [2-2, 2-5, 2-3, 2-8; 5-2, 5-5, 5-3, 5-8; 3-2, 3-5, 3-3, 3-8; 8-2, 8-5, 8-3, 8-8]; A1 = A' ; ...

약 8시간 전 | 2

답변 있음
Finding the maximum value in a specific row of a matrix
M = [3 6 1 -2; 3 0 -2 -4; 8 -3 5 4; -2 -3 -2 5]; [val1,idx1] = max(M(4,:)) % maximum in the row 4 [val2,idx2] = max(M(:,3))...

약 8시간 전 | 0

답변 있음
how to animate two plots at the same time?
Put this line: comet3(xv,yv,zv) %xv yv zv are the values I get from solving the 2-body problem which I didn't include here int...

약 10시간 전 | 0

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답변 있음
index exceeds the number of array elements (1).
This error occurs when you try to extract more number of elements than present in the array. EXample: A = rand(1,10) ; A(1) ...

약 14시간 전 | 0

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Plot will not show lines
x = -0.923 : 0.01 : -0.633 ; f = 16*x.^3 - 13*x.^2 + 12*x + 15 ; g = -7*x.^3 - 6*x.^2 + 4*x - 6 ; plot(x,f, x,g) ylabel('...

약 15시간 전 | 0

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답변 있음
drawing a best fit graph
I = imread('image.png') ; I = rgb2gray(I) ; [y,x] = find(~I) ; % Get center idx = boundary(x,y) ; x = x(idx) ; y = y(id...

약 15시간 전 | 0

답변 있음
Find all values between 2 index columns
for i = 1:size(c,1) value = dataset(C(i,1):C(i,2)); end

약 17시간 전 | 0

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답변 있음
I'm trying to create three curves, but my plot is blank
Code looks meaning less though. mi = [2814 1000 19781]; c(1) = 2080; c(2) = 1580; c(3) = 2580; v = c*log(19781/2814); figu...

약 17시간 전 | 0

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답변 있음
How to find the point of intersection of two level curves?
The best function for you: https://www.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections

1일 전 | 0

답변 있음
How to plot in command window
If your data is 2D, use plot plot(x0,yo) If your data is 3D use plot3. plot3(xo,yo,r) ; Note that to use plot command x0,y0...

1일 전 | 0

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답변 있음
For loop gives error: Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.
This error occurs, when you try to save more number of elements than you initialized. Example: A = rand(10,5) ; % initialize ...

1일 전 | 0

답변 있음
Delete all values except the max value
A = [3,10,8 4,8,1] ; [val,id] = max(A,[],2) ; idx = A<val ; A(idx) = 0 ; A

1일 전 | 0

| 수락됨

답변 있음
how to get plot with the points increasing with changing color (as points increase their color change from grey to black)
X = repmat((1:5)',1,5) ; Y = rand(5,5) ; plot(X,Y,'.-')

1일 전 | 0

답변 있음
I need to fill a column data with a specific value
Let data be your m*2 data. x = data(:,1) ; y = data(:,2) ; y0 = y ; % idx = A your indices which should be nan y(idx) ...

1일 전 | 0

답변 있음
Features Classification using deep leaning.
Refer: https://in.mathworks.com/help/deeplearning/ug/create-simple-deep-learning-network-for-classification.html

1일 전 | 0

답변 있음
Select a random element of a vector and use randi command
A = magic(5) ; A = A(:) ; N = numel(A) ; idx = randi(N,1) ; A(idx) = rand

1일 전 | 0

답변 있음
How to define these two functions?
syms t alpha f = t^(alpha-1)*exp(-t) ; F = int(f,t,[0 inf])

1일 전 | 0

답변 있음
Need Help for fprintf
% data = importdata(filename) ; data = [1 10 100 1000 10000 2 20 200 2000 20000 3 30 300 3000 30000] ; ...

3일 전 | 1

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답변 있음
showing hours elapsed not date and time data
Let d be your datetime array. d.Format = 'hh:mm:ss'; t = cellstr(d)

4일 전 | 0

답변 있음
How do I remove all filenames from my cellarray with .m ending, if else how do I save those with .bmp?
idx = contains(filenames,'.bmp') ; filenames(idx)

4일 전 | 0

답변 있음
Horizontal line in plot up to a graph
If you have the xlimits (x0,x1) and the y-value..the required equations is y = k. x = 1:10 ; k = 3 ; y = k*ones(*Size(x)) ; ...

4일 전 | 0

답변 있음
Summing randomly generated numbers
n1 = 0:0.1:0.9; n2 = 0:0.1:0.9; r1 = n1(randi([1,numel(n1)])); r2 = n2(randi([1,numel(n2)])); thesum = r1+r2

5일 전 | 0

답변 있음
Array indices must be positive integers or logical values.
function [z]=phi(x) %Determine phi(x) using the formulas provided %2/25/21 %AE 227 a=0.4361836; b=0.1201676; c=0.937298;...

5일 전 | 1

답변 있음
How can I surface plot a 1000x2 matrix?
A = randn(1000,2); hist(A(:)) hist(A)

5일 전 | 0

| 수락됨

답변 있음
How to find the position of a number in an cell-array?
P= {[2,5], [3], [], [1,14], [], [9]} ; N = length(P) ; val = 14 ; for i = 1:N idx = ismember(14,P{i}) ; if any(i...

5일 전 | 0

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답변 있음
count number of rows in csv outside of matlab
csvFiles = dir('*.csv') ; N = length(csvFiles) ; f = cell(N,1) ; % first row l = cell(N,1) ; % last row for i = 1:N ...

5일 전 | 0

답변 있음
Creating a 3D graph of many 2D-view surface plots
On using contour, you will get the points/ locations (x,y).... do interp2 and you will get the respective z values......do the s...

5일 전 | 0

답변 있음
How to create a netcdf in matlab which can be read by grads without using descriptor file?
% nc filename to be written file = 'myfile.nc' ; %% Write lon and lat variables % Get data lon = 1:10 ; lat = 1:10 ; nx ...

5일 전 | 0

답변 있음
Finding matching points between two 2d point sets, but different sizes
Read about knnsearch.

5일 전 | 0

답변 있음
Eigen Vectors and Values using Matlab
A=[4 6 2;6 0 3;2 3 -1]; lambda=eig(A) syms l eqn = det(A-l*eye(3))==0 ; solve(eqn,l) ; l = double(vpasolve(eqn,l))

5일 전 | 0

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