Krish Desai
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Accept 20 answers given by other contributors
Awarded to Krish Desai on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to Krish Desai on 20 Jul 2017
Feeds
Question
How can I change multiple variable name within a loop, while assigning those variables as matrix values?
I have a n x 3 matrix called dataMat. I also have n amount of processes that this code will eventually be able to handle. Each ...
7 years ago | 2 answers | 0
2
answersQuestion
Constant number is changing value, why?
So I have a 1 that should print out, but instead only on the first line does 1 print out, for the rest the number keeps changing...
8 years ago | 1 answer | 0
1
answerHow to find dimension problems?
You could try to use the size function. For example: A= 1: 5 A= 1 2 3 4 5 size(A) ans= 1 5
8 years ago | 0
Question
Change file name in loop
For some reason only one file dump_0 is being created. Does this mean Matlab is not going through the for loop? for t=0:dt:...
8 years ago | 1 answer | 0
1
answerQuestion
Output data to new text file for every time step
where should I put my printf's that for the current time steps that I have, I get 5 new files for each step with the x,y,z posi...
8 years ago | 1 answer | 0
1
answerQuestion
Why am I getting index must be positive integer or local error?
for ind=0:1920 U=3*ind+linspace(1,3,3); k= PHI_disp_RBME_ModePlot_N(ind); r=xlocs_full(ind); end i=...
8 years ago | 1 answer | 0
1
answerQuestion
How to graph the displacement of an atom? (formula below)
*u*(jl,t)=Σ *U*(j,k,v)exp(i[k*r(jl)-⍵(k,v)t]) the displacement of the jth atom in the lth unit cell. Sum of all wave vecto...
8 years ago | 0 answers | 0
0
answersQuestion
Plotting a function error
I'm trying to plot the following: y=((e^(-6t))/6)*(1-9e^(6t)+14e^(6t) t=-10:1:10; plot (t,((exp(-6*t))/6)*(1-9*exp(4*...
8 years ago | 1 answer | 0
1
answerQuestion
How to graph this function?
So I'm trying to graph a function and when I plot the following: plot(y,(.65*y)-(0.65*y.^2/10.5)); It works fine but whe...
8 years ago | 1 answer | 0
1
answerQuestion
Why is my graph stopping at 10?
So I'm graphing the following (note: I'm also graphing a direction field) and when I plot it the graph stops when x=10. Any sugg...
8 years ago | 1 answer | 0
1
answerQuestion
How to Alternate Between Two Different Graphs
So I'm plotting a graph and the direction field. Is there any way I can press a button and switch between the two graphs, also c...
8 years ago | 1 answer | 0
1
answerQuestion
How to graph a differential equation
The equation I am trying to graph: f(y)=r(1−(y/L)y - py^2/(q+y^2) Where p=1.2, q=1 and L=6.1 function yp=fishfun(t,y) ...
8 years ago | 1 answer | 0
1
answerQuestion
Get rid of unwanted output
I have the following code function output=beautyofmath(i) for i = 1:9 if i == 1 j(i, 1) = i;...
8 years ago | 1 answer | 0
1
answerQuestion
Problem creating an equation
I am trying to create f=e^(cos(t))+-2cos(4t)-(sin(t/12))^5 is the below the same thing or do I have to change it? f=...
8 years ago | 1 answer | 0
1
answerQuestion
Function that graphs equations
Create a function named butterfly. The function receives three input arguments and returns two output variables (x and y values)...
8 years ago | 3 answers | 0
3
answersQuestion
Get rid of unwanted output
I have the following code: function output=beautyofmath(i) for i = 1:9 if i == 1 j(i, 1) = i; ...
8 years ago | 1 answer | 0
1
answerQuestion
How to make a Palindrome Checker
I need to write a code that checks to see if an input is a palindrome-same backwards as forwards, for instance madam or rotor. ...
8 years ago | 2 answers | 0
2
answersQuestion
How to select the first letter of every word
I have no idea how I would go about doing this Input: I like eating pizza Output: Ilep
8 years ago | 1 answer | 0
1
answerQuestion
Select first letter in multiple words
I want to select the first letter in every word in a string statement. example: Input: 'Are you going to see the new ABC s...
8 years ago | 1 answer | 0
1
answerQuestion
Create Minesweeper Like Game
I create this board with my code: 1 2 3 4 5 1x x x x x 2x x x x x 3x k x x x 4x x x k x 5x x x x x I want to replac...
8 years ago | 2 answers | 0
2
answersQuestion
Create game board in matlab
I want to create a board that displays for the user to see. I then want the user to be able to enter an x and y coordinate and r...
8 years ago | 0 answers | 0
0
answersQuestion
Use user input to change board
I have a function that makes a board function userboard=userboard(n) userboard = cell(n+1,n+1); % initialize the board ...
8 years ago | 0 answers | 0
0
answersQuestion
Randomly insert new variable
My code currently creates a board of size n x n (user input) What I want to do now is to have certain positions on this board b...
8 years ago | 1 answer | 0
1
answerQuestion
Get multiple variables in an input
What I want to do is to get separate variables for the user inputted "row" and "column". Is there a function I can use to do thi...
8 years ago | 1 answer | 0
1
answerQuestion
Prompt user for a text string
This keeps coming up as an error, what am I doing wrong? prompt= 'State your name, Your Grace '; name=input(prompt);
8 years ago | 2 answers | 0
2
answersQuestion
How to Make a board in Matlab
I want to make a n x n size board in Matlab (n is a user input). How do I do this? I want it to appear as: 1 2 3 4 5 6 7...
8 years ago | 1 answer | 0
1
answerQuestion
Image into grayscale without using toolbox
This is my current code: function out = luminance(current_img ) R=current_img(:,:,1); G=current_img(:,:,2);...
8 years ago | 1 answer | 0
1
answerQuestion
Convert vector position to real number
Really simple question, I have the following: >> vec=[44 3 2 9 11 6] vec = 44 3 2 9 11 ...
8 years ago | 1 answer | 0
1
answerQuestion
Write a function to add random noise to an image in matlab
How do I create a function to add random noise without using imnoise? I am trying to figure out how to do it without using the b...
8 years ago | 3 answers | 0
3
answersQuestion
How to truncate the image values so they stay in the [0 255] range
This is my current code: function newImg = adjust_img(current_img) for current_img>255 new=255; newI...
8 years ago | 1 answer | 0
1
answer
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