MATLAB ONLINE doesn't work!

I'm using MatLab online and it hasn't worked for a few days. When will it be fixed?

[Torsten]

You can check MATLAB's status page:

https://status.mathworks.com/

[Star Strider]

The Status page indicates that it is operating normally, so I assume that means everywhere.

It is operating normally for me in the U.S.

[Turiceanu]

I am from Romania and the online version does not work. And it's a general problem, I asked my colleagues and they don't work either. Now that I looked on the status I saw what this is about and I guess I'll have to wait for the fix. Thank you Torsten!

[Star Strider]

Many of the MathWorks sites started working about 13:00 UCT earlier today, so about 7 hours ago.

Meanwhile, the online 'Run in 2024b' utility works here --

t = linspace(0,1).';
s = sin(t*[1 3 5]*2*pi);

figure
plot(t, s)
hold on
plot(t, sum(s,2), LineWidth=2)
hold off
grid
xlabel('$t$', Interpreter='LaTeX', FontSiZe=16)
ylabel('$s(t)$', Interpreter='LaTeX', FontSize=16)

●

.

Answer 1

[Lakshay Kaushik]

You're referring to the MATLAB plot created with the following code:

t = linspace(0,1).';
s = sin(t*[1 3 5]*2*pi);
figure
plot(t, s)
hold on
plot(t, sum(s,2), LineWidth=2)
hold off
grid
xlabel('$t$', Interpreter='LaTeX', FontSiZe=16)
ylabel('$s(t)$', Interpreter='LaTeX', FontSize=16)

Explanation of What This Code Does:

1. t = linspace(0,1).';Creates a column vector of 100 linearly spaced values from 0 to 1 (default is 100 points unless specified otherwise).
2. s = sin(t*[1 3 5]*2*pi);This multiplies t by [1 3 5]*2*pi to create three sinusoids of frequencies 1, 3, and 5 Hz, and stores the result in matrix s.So each column of s is:

• sin(2πt)
• sin(6πt)
• sin(10πt)

1. plot(t, s)Plots all three sinusoids on the same axes.
2. hold on and plot(t, sum(s,2), LineWidth=2)

• sum(s,2) sums the values across the columns (i.e., adds the 3 sinusoids pointwise).
• This summed waveform is plotted with a thicker line.

1. xlabel and ylabelLabels the axes using LaTeX formatting ($t$ and $s(t)$) and sets the font size.
2. gridEnables grid lines on the plot.

Result in the Image:

• Three thin lines: The individual sine waves of different frequencies (blue, orange, and red).
• Thick purple line: The pointwise sum of the three sine waves.
• Axes Labels: $t$ for time on the x-axis and $s(t)$ on the y-axis in LaTeX style.
• Grid: Visible for clarity.
• Correct LaTeX rendering: Used for mathematical formatting.

[Walter Roberson]

This code is from @Star Strider not from the original poster. It was sample code to illustrate that the online 'Run in 2024b' utility was properly functioning. No-one asked for an explanation of the code, and an explanation of the code does not help at all towards the original question of why MATLAB Online was not working.