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How do I get the relative error between 2 signals in Simulink?
Assume x and y are the two signals, you are doing abs((x-y)/x) or abs((x-y)/y), when x or y is close to zero, it will cause di...

11 meses hace | 1

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Tally Instances of Negative Numbers in an Array (for loop)
A=load() returns A as a structure, not a typical matrix. If you make A an matrix, this code would work if you make the following...

11 meses hace | 0

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isnan to conver nan to zero in a table
T is an object of the class "table". You can't apply isnan() on it directly. Try the 'TreatAsMissing' option of the readtable() ...

11 meses hace | 0

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Is there a way to extract a list from "PV Array.ModuleName.Enum" to view the solar module data more efficiently?
Should be BlockDialogParameters.ModuleName.Enum or getfield(BlockDialogParameters.ModuleName,'Enum')

11 meses hace | 0

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Plot RGB triplets from a matrix as markers 'o'
Use 'color' to specify color in plot() x = linspace(0,10,10); y = linspace(0,10,10); xlabel('X-axis'); ylabel('Y-axis'); ax...

11 meses hace | 0

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What is the max number of digits allowed for a base 2 number?
The default data type in MATLAB is "double", which means 64 bits. When used to represent a base 2 number, its maximum value is 2...

11 meses hace | 0

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How to set Simulink block parameters using an absolute model path
The "absolute model path" of a block starts with the name of the model, not including the file folder where the model file is st...

12 meses hace | 0

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How to output text to Command Window if signal changes from 0 to 1 in Simulink
You might want to do that, but MATLAB and Simulink are quite different. I don't think you can do that because disp() or fprint...

12 meses hace | 0

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I can't download Matlab R2022a release or earlier release
I can see many versions on this link. https://www.mathworks.com/downloads/

12 meses hace | 0

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How to change const variable during simulink runtime
While the simulation is running, if you double click the Constant block, change its value from one numeric value to another (e.g...

12 meses hace | 0

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Initial condition from external source for discrete integration diuring runtime
The value of "mec_init_pos" could be constant or dynamic, but in this case, only its value at the begining of the simulation (e....

12 meses hace | 1

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Function Call Trigger Problem
This "Outport" block seems to output a function call trigger. The message tells you what type of block can receive this signal. ...

12 meses hace | 0

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A few basic Simulink/Simscape questions
run forever (tstop = inf) Yes. Set the simulation stop time to be inf store the trailing 10000 points Yes. Limit the data poi...

12 meses hace | 0

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How the Delay one step block and stop time ( simulation time) infuence each other on simulink?
If you don't specify the step size or it is auto, the step size is automatically adjusted, influnced by simulation stop time and...

12 meses hace | 0

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Simulink model output heavily dependent on relative tolerance
Not typical but is for a stiff system. Choose a stiff solver. https://www.mathworks.com/help/matlab/math/solve-stiff-odes.html

12 meses hace | 0

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Issue in creation of test harness of a Simulink state in stateflow or creation of harness of a subsystem present in simulink state of stateflow.
I don't think a "system under test" can be a "state" in a state chart. A typical "system under test" has inputs, while a "state"...

alrededor de 1 año hace | 0

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Hello, can MATLAB solve equations like the one below? I mean, can MATLAB find the conditions for z that satisfy this relationship, instead of just numerical solutions?
https://www.mathworks.com/products/symbolic.html

alrededor de 1 año hace | 0

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Generate signal according to the the rising edges of two pulse generators in simulink.
A triggered subsystem shoud suffice. https://www.mathworks.com/help/simulink/slref/triggeredsubsystem.html

alrededor de 1 año hace | 0

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Matlab & Simulink crash at 2nd model run
After first run, execute "clear mex" or "clear functions" in MATLAB Command Window to see if it makes a difference.

alrededor de 1 año hace | 0

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Avoid reuse of local variables in Embedded coder
That is probably not the correct option. You should try to disable the "Reuse local block outputs" option. https://www.mathwor...

alrededor de 1 año hace | 0

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Switch multiport switch inputs based on time and order from user
There are many ways to do it. The easiest or most flexible way to do it is probably by using a MATLAB Function block. Use a Cloc...

alrededor de 1 año hace | 0

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Attempting to turn off Dynamic Memory allocation but struggling to set variable size upper bound
Try allocating the variable in one shot, e.g. obj=struct('x',num2cell(rand(1,1000)))

alrededor de 1 año hace | 0

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Can one Function call Trigger Multiple Subsystems?
Function-Call Split https://www.mathworks.com/help/simulink/slref/functioncallsplit.html

alrededor de 1 año hace | 0

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运行s-function Output argument "sys" (and possibly others) not assigned a value in the execution with "ctrl>mdlOutputs" function.
Probably a typo at the last line of this code below. Should be 'sys', not 'sym'. Also need to add a line 'end' to finish this fu...

alrededor de 1 año hace | 1

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my for loop stop after the first valid number has been found how do i fix this
Use "result_1", no need to create "answer_1" numbers=1:100; result_1=[]; for i =1:numel(numbers); num=numbers(i); i...

más de 1 año hace | 0

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hi i started the matlab onramp course and im stuck on this further practice question i wld appreciate if anyone cld help me or even give an hint
density=10:10:100 index=[1 3 6] SelectedDensityValue=density(index)

más de 1 año hace | 0

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Questions regarding Unit Delay block initial condition and model recompilation
Use Simulink.Parameter Specify its storage class as "ImportFromFile" and specify a HeaderFile name. When the code is generated...

más de 1 año hace | 0

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Why am I getting a computed maximum size is not bounded error in a MATLAB Function block in Simulink R2021a even when using assert?
The Simulink diagnostic is probably not designed to read the assert() function. The proper way for this is to define those data...

más de 1 año hace | 0

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How do I use the unit per mille in Simulink parameters and ports?
It is "m" for "milli". "mille" means "a thousand", that is "k" for "kilo".

más de 1 año hace | 0

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switching of svpwm is not working . it is not showing staircase mode in scope
To convert radians to degree, the Gain should be 180/pi. You had it as pi/180. That seems to be the cause. The logic seems corr...

más de 1 año hace | 0

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