I have a piece of MATLAB code that I want to translate to python, here is the relevant part of code: assuming x = [1,2,3,4,5]: % The size of x N=size(x); N=N(2); The issue is at the second line. I understand the index syntax if it was say x(2), but N(2) I don’t understand. I’ve… Read More Variable syntax in Matlab

From MATLAB docs, full statement: Code within an eval statement can unexpectedly create or assign to a variable already in the current workspace, overwriting existing data. What’s an example? If I define function fn(); a=1 and call evalc(‘fn()’), could a suddenly appear in a variable scope other than inside of fn? Example here (trying to… Read More "Code within an eval statement can unexpectedly create or assign to a variable"

code: clc clear % Define the time span tspan = [0 10]; % Time span for the simulation (from 0 to 10 seconds) v0 = 0; % Solve the differential equation using ode45 [t, v] = ode45(@ode_function, tspan, v0); % Plot the velocity as a function of time plot(t, v) xlabel(‘Time (s)’); ylabel(‘Velocity (m/s)’); title(‘Velocity… Read More Undefined results (NaN) when using ode45 in MATLAB 2022

I am using fplot() to plot the expression exp(-t)sin(5t) over the range of (-2,2). I did fplot(exp(-t)*sin(5*t),[2,2]) but it doesn’t plot the way I wanted. What should I do? >Solution : You’re getting an error: Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. Listen to the error –… Read More Plotting continuous variable in MATLAB

i have the code like below H = [10 20 30 40 50 60] b = [5 9 28 59 22 18] g = [9 9 10 25 30 5] H(b < g) = 2*100 – H(b < g) the result is like this : H(b < g) = 2*100 – H(b < g) i… Read More how to convert H(b < g) = 2*100 – H(b < g) from MATLAB to python

I want to add blocks to MATLAB simulink model by command line. I used add_block command to add a Constant block to my model by following command and it worked add_block(‘simulink/Sources/Constant’,’MyModel/ConstValue’) But when I try to add’Chart’ to my model by the following command, add_block(‘stateflow/Chart’,’MyModel/Chart’) It causes an error: Error due to multiple causes. Caused… Read More add-block command in MATLAB

open-loop transfer function: G(s)=5*(0.0167s+1)/[s*(0.03s+1)(0.0025s+1)(0.001s+1)] bode picture in matlab >Solution : num=5*[0.0167,1]; den=conv(conv([1,0],[0.03,1]),conv([0.0025,1],[0.001,1])); G=tf(num,den); w=logsapce(0,4,50); bode(G,w);grid; [Gm,Pm,Wcg,Wcp]=margin(G)

In short how can I change this 1 line code reshape((b-c)/d,1,[]) into python? >> a=1:20; >> b=reshape(a,4,5) b = 1 5 9 13 17 2 6 10 14 18 3 7 11 15 19 4 8 12 16 20 >> c=-3; >> d=2; >> reshape((b-c)/d,1,[]) ans = Columns 1 through 17 2.0000 2.5000 3.0000 3.5000… Read More How can I get the same results in Python is it in the following MATLAB code? how to change this code into python?

classdef Dog end d=Dog(); can size(d) be controlled? Is there some property to set or method to overload? Ultimately I have like d.data = [1, 2, 3] and want length(d) == 3. I’m aware I can make d.length(). As an aside, is there a list of MATLAB "magic methods", i.e. functions that control interaction with… Read More MATLAB set class `size`

I have large data sets which i want to work with in matlab. I have a struct called Trail containing serveral structures called trail1, trail2 … which then contain several matrices. I now want to add another point to for instance trail1 I can do that with Trail.trail1.a2rotated(i,:) = rotpoint’; the problem is that i… Read More Creating a structure within a structure with a dynamic name