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Programming in MATLAB applied to interdisciplinary engineering fields

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Answered
How to plot a function dependent on no. of iterations, provided it plots till nth iteration where n is the number where the function is converged?
n= 10; e = 0; for m=1:n pu(m)=(-1)^m/((2*m)+1)*(exp(-((2*m)+1))) e = e+pu(m); if (abs(pu(m))/e)>(10^(-6)) ...

34 minutes ago | 0

Answered
Colour options in plotting graphs
figure hold on cc = 'rgbmyck' for i = 1:7 subplot(211) plot(rand(10,1),'color',cc(i)) hold on title('oute...

3 hours ago | 0

Answered
Code-m file for Sampling
clear all close all % Creating modulating signal fm=2; % message signal frequency (Hz) n=50; % factor of sampling frequenc...

5 hours ago | 0

Answered
*.* and %s meaning in MATLAB
There are many symbols in your statement. What do you exactly mean by *.* or %s depends on the usage of symbols in your program....

9 hours ago | 0

Answered
How do I prevent my code from printing the ans statements?
for k=[2,3,4,5] X = randi([0,1],[k,4]); end X Place a semicolon at end of line.

12 hours ago | 0

Answered
how to linspace to create a coulmn vector
A = linspace(0,550,50).';% increasing AA = linspace(550,0,50).';% decreasing

12 hours ago | 0

Answered
trying to use heun's method to solve an ode
a = 0; b = 10; n = 100; h = (b-a)/n; % T = a:h:b; F0 = 0; w = 0; m = 4; k = 10; c = 0.2; y0 = 4; h=(b-a)/n; ...

1 day ago | 0

| accepted

Answered
how to replace 1 element in matrix
A = rand(4,5); A(3,4) = 75; D = A; You can assign the new matrix to old one after replacing the value with 75. Read m...

1 day ago | 0

Answered
Multiple plotting issue?
subplot(3,1,k) plot(x,us)

1 day ago | 0

Answered
How can i store the values for each of the 10 iterations of N. i want to store each and every value of the loop.
x_e(j,k,i,n) = x3(j,k,i); y_e(j,k,i,n)= y3(j,k,i); Just use index n instead of nn in for loops

1 day ago | 0

Answered
How to get Fourier transform of rectangular window as shown by wvtool function?. Why frequency domain of rectwin(M) using fft and wvtool are different?
_By default, the frequency domain plot is the magnitude squared of the Fourier transform of the window vector in decibels (dB)_ ...

2 days ago | 0

Answered
Dot Product of row vectors using loops not functions
result = dot(a1,a2) Why do you need a for loop ?

2 days ago | 0

Answered
Make scalar data into a vector
for i=1:length(x) a(i)=round(-19.93984628*x(i).^2-19.26822854*x(i)+28.63259561); %Use inverse matrix to form system ...

2 days ago | 0

Answered
Code not working?
clear; clc; % Given data E_f = 228000; % Elastic modulus of the fiber E_m = 1325; % Elastic modulus of the matrix G_f = 15...

3 days ago | 1

Answered
Unable to plot transfer function properly by using step(tf,array)
sys = tf(4,[1 2 10]); tt=0:0.0074:0.3; step(sys,tt)

3 days ago | 0

Answered
where is the mistake?
while count<15 if strcmp(w(count),'r') disp('yes') count=count+1; else break;% this will ...

3 days ago | 0

Answered
i have a function and i need to find the output of the last value. y(n)=1/2*(y(n-1)+A^2/y(n-1)) 0<=n<=N-1 (N=30 A=4),When i run it says output arguments not assignet.
function res = my_matlab_function(A,N) % res is te function output y(1)=1/2*(3+(A^2/3)); y(2)=1/2*(y(1)+(A^2/y(1))); for n...

3 days ago | 0

Answered
I have written the code for three differential equations for plotting the graph . I am not able to get the graph .
clc; clear all; close all; F = @(Z,X,Y) (1.07*Z*Z-Z*Z*Z-0.17*Z-(0.36*Z*X)-(0.0001*sqrt(Z*Y))/(1+0.2*sqrt(Z))) A = @(X,Y,Z)...

3 days ago | 0

Answered
Implicit matrix expansion correction
a = rand(11,21); b = rand(21,1); c = 21 a = reshape(a(a~=b.'),[],c) There is no error with your code. Maybe it's version...

3 days ago | 0

Answered
Nothing shows up on plot?
MM = 24; days = 1;i =1;% set value to counter while MM > 0 m(i) = MM; MM = MM - randi(5); MM = MM - 7; ...

4 days ago | 0

Answered
Ode45 not working in matlab 2021b
zdot=inline('[z(2);-0.2*z(2)-sin(z(1))]','t','z') Check your zdot function. There is no variable with _t_ defined in it...

4 days ago | 0

Answered
How can I remove some specific lines from this contour plot
Easy way is that you can select "Edit" option from the figure window after plotting and click on figure properties. Then click o...

4 days ago | 1

| accepted

Answered
Reading all values as a string from excel file
Use readtable or readmatrix instead of xlsread

5 days ago | 0

Answered
TASK 5 PROBLEM SIMULINK ONRAMP
Set the initial condition source to external and try

5 days ago | 0

Answered
Simulink Onramp 13.1 Task 5
Set the initial condition source to external from drop down menu.

5 days ago | 0

Answered
Error when indexing 3D cell array: Index in position 2 exceeds array bounds
N = block_size*ceil(numel(participants{i,2})/block_size); Try changing this line to above. It seems you are using _numel_ f...

5 days ago | 0

Answered
How Do I Properly Format my Bar Graph?
x = [379.5 , 1138.3 , 1897.2 , 2656]; % your values y = rand(size(x)); bar(x, y) xlabel('Number in the Thousands (ie 4,000)'...

6 days ago | 1

Answered
Getting a blank graph
syms theta1 grid on w2 = @(theta1) ((cos(pi/6)*(sec(theta1)).^2)./ ((tan(theta1)).^2+(cos(pi/6)).^2))*2*pi; theta1 = 0:pi...

7 days ago | 0

Answered
why do I keep getting this error message
t = 0:1/320:0.5; x = @(t) 6*cos(4*pi*t)+2*sin(16*pi*t) -4*sin(32*pi*t);% define anonymous function x(t) plot(x(t))

7 days ago | 0

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