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Sergey Kasyanov


Saints Petersburg Politechnical University

148 total contributions since 2017

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Question


Force output for function with no output
Hello! I am working with function handles and get error because function does not return anything. Can I force any function to ...

3 days ago | 1 answer | 0

1

answer

Question


Run VBA code in MS Office through COM
Hello, I need to take some data from program through COM but that program does not working with Matlab correctly. However tha...

6 months ago | 0 answers | 0

0

answers

Answered
How i can call matlab basic function if that name is accotiated with couple of functions?
The simplest way to do that is use that code: varargout = builtin('diff',varargin{:}); Also you can looking for somethin...

1 year ago | 0

| accepted

Question


How i can call matlab basic function if that name is accotiated with couple of functions?
Hello, I need to call function |diff| (differences between array elements) for array of symbolic variable but matlab is using...

1 year ago | 2 answers | 0

2

answers

Answered
How to solve det(s^2*M+s*C(s)+K)=0 for s as fast as posible
You can try to use that code from <https://www.mathworks.com/matlabcentral/fileexchange/67052-matlab-scripts there>: A=Ga...

1 year ago | 0

Solved


Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

1 year ago

Answered
Help reducing memory usage during large matrix multiplication
I think that problem can be solved by the manual multiplication of matrices. %note: V2=(V2-I*C) is the same V2(172)=V2(172)...

1 year ago | 0

Answered
How I can fix this "Signal Dimension" error message ?
You may use |Simulink/Signal Attributes/Signal Specification block|. Specify number of dimensions like that is shown on the pict...

1 year ago | 0

Solved


Model a mass spring system
Model an ideal mass-spring system shown below where the spring is initially stretched. <<http://blogs.mathworks.com/images/se...

1 year ago

Solved


Make a full wave rectifier
Produce a full wave rectifier waveform for the given sine wave source. For a sine wave input, the output of the full wave rec...

1 year ago

Solved


Make a half wave rectifier
Produce a signal that outputs the given sine wave source when it is greater than zero and outputs zero when it is less than zero...

1 year ago

Solved


Add offset to a signal
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-offset-eqn.png>> You should see a downward...

1 year ago

Solved


Produce a sine wave
Produce a sine wave with amplitude 3: <<http://blogs.mathworks.com/images/seth/cody/sine-eqn.png>>

1 year ago

Solved


Add a block to a model
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-block-eqn.png>> In this case, the slope of...

1 year ago

Solved


Produce a cosine wave
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/cosine-eqn.png>>

1 year ago

Solved


Connect blocks in a model
Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

1 year ago

Submitted


Matlab scripts
My scripts for Matlab

1 year ago | 4 downloads |

Question


Window appears while code is runnig
Hello, I'm trying to create library with some |SimPowerSystem| blocks. When I use blocks from my library in |Simulink| model ...

1 year ago | 0 answers | 0

0

answers

Answered
How can I have a timed (15 minutes) output signal based on external trigger? I want to generate an output HIGH signal for 15 minutes based on a event detection impulse signal.
Hello, This is the model with standart Simulink blocks. Output from |Switch1| is the desired signal. The |Compare To Const...

1 year ago | 0

Answered
subs( ) command would not work
Hello, you should to reassign variable after substitution: A=subs(A,a,1);

1 year ago | 1

| accepted

Solved


Make a run-length companion vector
Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...

1 year ago

Solved


Flag largest magnitude swings as they occur
You have a phenomenon that produces strictly positive or negative results. delta = [1 -3 4 2 -1 6 -2 -7]; Marching thr...

1 year ago

Solved


Given a window, how many subsets of a vector sum positive
Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

1 year ago

Solved


Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

1 year ago

Solved


Ripping numbers apart!
So you have to "rip" a number apart into individual digits... The end output is a cell. That is if: x = 12345678 o...

1 year ago

Solved


Numbers in extended form
Shhhhhhh. Don't tell my daddy, but I'm borrowing his Cody account so all of you very smart people can help me out. I just star...

1 year ago

Solved


Reverse Calculator
Use this reverse calculator and give correct output Its simple, In my Reverse calculator if you press 0 it will be considered...

1 year ago

Solved


Decode a simplified barcode
Given a bar code from this <http://www.mathworks.com/matlabcentral/cody/problems/602-make-a-simplified-bar-code exercise>: Re...

1 year ago

Solved


Make a simplified barcode
Given an integer to encode, make a barcode using the following encoding scheme: * The bar code is made from the binary versio...

1 year ago

Solved


Test if a Number is a Palindrome without using any String Operations
*Description* Given an integer _X_, determine if it is a palindrome number. That is, _X_ is equal to the _X_ with the digits ...

1 year ago

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