MATLAB Onramp course error

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Mark Oliver
Mark Oliver 2019-5-14
评论： Sathish 2025-9-9
I am running the MATLAB Onramp but it stalls at 11.1 The MATLAB Editor: (2/2) Practice, (71%)
The error is "There was an issue communicating to the MATLAB compute resource". Execution halts at the same place every time.
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SIRAJ
SIRAJ 2022-8-6
its does had any solution plz share it...
Vishnu Sood
Vishnu Sood 2022-10-15
delete all the previously typed code then copy and paste from sol. space

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回答（4 个）

Richard Chukwu
Richard Chukwu 2019-6-5
Same with me. I'm on the fundamentals and I get this error at intervals. Even though my connection is okay.
  2 个评论
Laura Jones
Laura Jones 2021-2-15
I think those features must be broken and no one is bothering to fix them because the course is free.
SIRAJ
SIRAJ 2022-8-6
frds one solution i got it first delete all initial lines see the solution then type it u definitely get crt answer try it...

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Mark Oliver
Mark Oliver 2019-6-5
I restarted my computer and never had the issue again.
KANISH THAKUR
KANISH THAKUR 2020-6-10
don't use "..." after "element", after finishing the term inside the bracket close it by using semi colon.
  1 个评论
mehdi benbraik
mehdi benbraik 2020-6-11
yes great ; thank you friend , its ok new
if doPlot
plot(density)
title("Sample Densities")
xticklabels(element)
ylabel("Density (g/cm^3)")
else
disp("The density of " + element + " is " + density);
end

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KAMLESH SINGH
KAMLESH SINGH 2020-4-30
编辑：Walter Roberson 2021-2-16
x = rand
if x > 0.5
y = 3
else
y = 4
end
TASKModify the script so that when the if condition is not satisfied, the following line of code is executed:
disp("The density of " + element ...
+ " is " + density)
Hint
See Solution
Reset
Submit
Hint
Modify the if statement to be an if-else statement.
In the else body, use the code as shown above.
Test Results:
Incorrect!----------------------------------------------Why the result is incorrect???? When the code written in Task 1&2 is correct
Are the densities displayed when doPlot is 0?
Are the densities not displayed when doPlot is 1?
Further Practice
WORKSPACE
COMMAND WINDOW
Decision Branching
Instructions are in the task pane to the left. Complete and submit each task one at a time.
Do not edit. This code creates a random number to test the if statement.
doPlot = randi([0 1])
This code loads the data.
load datafile
density = data(:,1);
Task 1 & 2
if doPlot
plot(density)
title("Sample Densities")
xticklabels(element)
ylabel("Density (g/cm^3)")
else
disp("The density of" + element ....
+ "is" + density)
end
1
2
3
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5
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13
doPlot = 1
decisionBranching.mlx *
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Walter Roberson
Walter Roberson 2022-8-6
@Thabiso Johannes Khune
If you are doing the same task as some other people have posted, then you are not supposed to do those lines unless doPlot is 1 . Your code is doing the lines if doPlot is non-zero. For example if doPlot were 2 then the task would require that the lines not be executed.
GUDIPATI SRINIVASULU
GUDIPATI SRINIVASULU 2024-9-22
  1. if doPlot ==1
  2. plot (density)
  3. title("sample Densities")
  4. xlabel("Element")
  5. ylabel("Density (g/cm^3.")
  6. else
  7. disp("The density of " + element +"is"+num2str(density) + " g/cm^3.");
  8. end

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