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MATLAB enthusiast , Mechanical engineer (MeMe) :-)

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How to increase speed of this code
@ASHA RANI one way to speed up code is increase the step size or increment in the OM array. The variables used in the equation...

5 days ago | 0

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Distance between points in a 2D matrix
for i=1:m %go through each column for j=1:n %go through each row dist(i,j)=sqrt(((RV(i,j+1)-RV(i+1,j+1))^2)+(RV(i+1,...

6 days ago | 0

Answered
Plot: Dots won't go higher than y=0
clc clear % Inledande data d0 = 30e-3; % Diameter (m) h0 = 40e-3; % Ursprunglig höjd (m) h1 = 34e-3; % Höjd efter första...

9 days ago | 0

Answered
How to create separate tables so that I can have them open at the same time?
@Jacob Allen You can make the following changes to the code. If you want to display table data in different tabs you can use u...

11 days ago | 0

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How to store arrays from this for loop and merge them to be displayed on an App Designer Table?
@Jastin You need to store the solution and iteration array to display the values in uitable as shown below normVal=norm(x_ol...

13 days ago | 0

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Error message: Matrix Dimensions must agree
Hi @Ian Strahley, Use linspace to divide the data points uniformly for variables in the equation. use a function handle, w...

14 days ago | 0

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f(x,y)=(x^2+y^2)/x = 0
@Nguyen Phuoc use fsurf function or mesh function % simple way f = @(x,y) (x.^2 + y.^2)./x; fsurf(f,[0,1]) % 2 x = linsp...

24 days ago | 0

Answered
Facing difficulties regarding quiz section from course "Matlab fundamaentals" in module 4.
Remember to select all correct options. I.e 3(which you did already) and 6 only.

26 days ago | 0

Answered
how can i create (generate) the Loop to Access Subfields:
@Gabriel To access elements of struct which are themselves struct, you need to use the . operator to next level of structure ...

29 days ago | 0

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Answered
I am unable to change the fontsize of axis ticks
@Chandramouli Santhanam, The below syntax should work better by using XAxis for axes handle x = rand(1,100); y = rand(1,100);...

30 days ago | 0

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Illegal use of reserved keyword "end"
for idx = 1:length(T)-1; % Give a space in for loop statement to close the loop

1 month ago | 1

Answered
rated_torque not matching desired torque for IPMSM
Hi From the reference graph you have, it seems the value you get for rated torque is correct. It's about 2.25 Nm. If you loo...

2 months ago | 0

Answered
Hello, I am working on a matlab code for school and it is using a while loop. The problem with this is I want the while loop to run until the variable doesn't equal itself.
while R ~= Rc You probably need to change the while loop condition like above. Given the input value for Reynolds number ...

4 months ago | 0

Answered
Matlab If Else Statement
Hi @Joseph DeMaria You have saved the script file with name myfunx but it also contains a function myfun(x) which takes input a...

5 months ago | 0

Answered
calculating fourier series for the given functions and drawing the curve?
clear syms x N=[5 15 30]; f1=exp(-abs(x)); a_01=(1/pi)*int(f1.*cos(0*x),x,-pi,pi); f_new10=vpa(a_01/2) f2=exp(-(x)); a_...

5 months ago | 0

Answered
error in fourie script
g=@(x) 1.*(x>0)+(-1).*(x<0); a_0=(1/pi)*quad(g,-pi,pi) x = linspace(-pi,pi,200); for k = 1:numel(x) for n=1:10 ...

5 months ago | 0

Answered
I am trying to code a solution to blasius eq using Runge kutta 4, help please.
@Guillermo, The anonymous functions, F ,G, H defined for the blasius flow need to applied in the same manner when RK4 method is...

5 months ago | 0

Answered
How can I scale and plot the graph according to the formula I use?
@Zaref Li you need to take the differential for noise term while solving the equation i.e. dW instead of W % Define paramete...

5 months ago | 0

Answered
Plotting the attenuation constant against frequency
@Vinci Use smaller conductnce value, and semilogx for ploting graph % Clear screen and variables clc, clear all % Define d...

6 months ago | 0

Answered
Why are the results of the iterative calculations different？
%%%%%%%%%%%%%%% clear clc T=1e-3; t=0:T:1; u=sin(2*pi*50*t); hold on for k = 1: numel(u) y(k)=fcn(u(k)); end plo...

6 months ago | 0

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Answered
How to plot level curves
@Irene Zhou there is a missing element wise product operator for the equation in your code. [X,Y] = meshgrid(linspace(700,900,...

6 months ago | 0

Answered
readtable struggling to interpret spreadsheet as numbers
seriesAL = rows2vars(readtable('Alberta.csv', ReadRowNames=1, MissingRule="omitrow",VariableNamingRule='preserve')) yy = strrep...

6 months ago | 0

Answered
Hi, I am having some trouble with a plot. I am trying to plot pressure vs. time using an equation for pressure with respect to time. Whenever I plot this I get a blank graph, so i'm not sure what the problem is. I appreciate any help!
@Sarah Fries Try using the vpasolve function and solve the equation for well defined input time interval. In your code, you we...

7 months ago | 1

Answered
I didn't understand it how they completed it?
@Mohit Define the symbolic variables d & theta for the given equation to be solved % syms d theta x = [d theta]; % defin...

7 months ago | 0

Answered
Workspace variable not available despite visibility in another variable
if you want to store the variable names Testsignal_1 and Current then you need to use an indexing variable as below. If this c...

7 months ago | 0

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Answered
Adding Legend to Subplot
@Ollie Bardsley, you need to rearrange the few lines of code inside the for loop as shown below LF = ["0 1.fig","0 2.fig","1...

7 months ago | 0

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Answered
How can I write a 'for' loop that sums up all elements of a vector?
@Seif do you mean like this ? a= [1:5] for i=1:3 c(i)=sum(a(i)+a(i+1)) disp(sum(c)) end

7 months ago | 0

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Answered
Legend colors change when I have two y axes
colors=["#028A0F","#1D57A9","#3DCBC8","#9C58A1","#F0D04D","#CD0027","#EF9F26","#B2B3B5","#FA9DAC","#98FF98","#67032F","#010101"]...

7 months ago | 0

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Answered
How to make the negative sign of y axis to be up ?
ydata = -900:100:100 xdata = ydata.*ones(1,length(ydata)) plot(xdata,ydata) yticks = ydata; yticklabels(fliplr(yticks))

7 months ago | 0

Answered
Incorrect dimensions for matrix multiplication
k = @(t,u) (k0 + (p*k0.^u-q*k0).*t +(p*k0.^u-q*k0).*(p*u*k0.^u-q).*t.^2/factorial(2)... +(p*k0.^u-q*k0).*((p*u.*k0.^u-q)....

9 months ago | 0

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