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**Content Feed**

Question

find angle of propagation in matlab

Hello, I have a matrces with values which when they are ploted the give a plot as attached. red is high values green is low va...

environ 24 heures ago | 1 answer | 0

### 1

answerQuestion

vector partial derivative of a two variable function

Hello i have the following function which is dependant on two variables. Is there a way to find the vector of the derivative wi...

2 jours ago | 1 answer | 0

### 1

answerQuestion

highting single plot among lots of plots on the same figure

Hello,I have a figure with 10 plots mingled together. my legend consists of 10 items . Is there a way in MATLAB where i could ...

25 jours ago | 1 answer | 0

### 1

answerQuestion

filtering excel commands in matlab

Hello, i have the attched file . i want using script command to extract the table and filter the rows of the table where the do...

27 jours ago | 2 answers | 0

### 2

answersQuestion

understanding fscanf reshape combination in reading a file

Hello, i have the following attached file where i have 3 subtables. after running the code bellow ,i am trying to understand th...

3 mois ago | 1 answer | 0

### 1

answerQuestion

command strategy for converting the following multi table text file into matlab array

Hello , I have the following attached file. i need to create in the most effiecient code way. i have a table i need to skip tw...

3 mois ago | 2 answers | 0

### 2

answersQuestion

problem representing a shape using several spectral elements in IFFT

Hello ,i have a step function described by the following code. i have tried to represent the shape using ifft by 8 elements. ...

7 mois ago | 0 answers | 0

### 0

answersQuestion

how to find specific variable values for solving equation system

Hello,i have the following equation system. is there a way in matlab to find P1..P6 values so pr(2)=pr(1)+5 pr(3)=pr(2)+5 e...

7 mois ago | 1 answer | 0

### 1

answerQuestion

adding constaints to fmincon code

hello,i have wrote the following code for optimization. how do i add the following constraints that my fmincon will run so tha...

8 mois ago | 1 answer | 0

### 1

answerQuestion

use of optimization constraint mask in matlab fmincon or similar

Hello, I know that fmincon uses expressions for describing constraints . but i want my optimization function to use a value ma...

8 mois ago | 0 answers | 0

### 0

answersQuestion

app designer painting circles and arrows

Hello, i am trying to build an app with lots of fields. but i want to circle some of them. and put arrows between fields, is ...

8 mois ago | 0 answers | 0

### 0

answersQuestion

matlab app screen too large

hello when i build an app with lots of fields and i expand the screen app to the bottom side, when i press play i get my applica...

8 mois ago | 0 answers | 0

### 0

answersQuestion

using external matlab file in app

Hello, i have external file as shown bellow and i created a simple app as shown bellow. how to display y(1) and x(1) when i pu...

8 mois ago | 1 answer | 0

### 1

answerQuestion

using external matlab file variables in app desighner

Hello , I have written matlab code in *.M matlab file. this matlab code has many variables and expressions. i want to use this...

8 mois ago | 2 answers | 0

### 2

answersQuestion

why my code gives different result then the formula

Hello,I have triedto implent the formula shown bellow in matlab to create the plot shown bellow. but when i implemented the for...

10 mois ago | 1 answer | 0

### 1

answerQuestion

problem accessing array of imported CSV file

Hello, after importing CSV file i have a variable 1D array called col but when i try to accsess it in different forms as shown...

environ un an ago | 1 answer | 0

### 1

answerQuestion

what is the FFT logic in calculating far field defraction matlab implemetation

Hello,there is an expression shown bellow that we need to plot in 2D grid plot as shown bellow. X and Y are 2D matrices going fr...

plus d'un an ago | 0 answers | 0

### 0

answersQuestion

how to understand .sc .mat in matlab

Hello,i cant see the logic of these two lines taken from the full code shown bellow. i know that its some how plotting an area...

plus d'un an ago | 1 answer | 0

### 1

answerQuestion

understanding "<" operator line

Hello,I cant understand a line of the line bellow taken from the code bellow. I think i generates a circle but i cant see how ....

plus d'un an ago | 2 answers | 0

### 2

answersQuestion

generating noisy data to play with in DSP

Hello,is there a way in matlab to create a signal put a high frequency noise on it and take samples from it to play with DSP FIR...

plus d'un an ago | 0 answers | 0

### 0

answersQuestion

Matlab script saving mouse click location

Hello,I have started using this type of scripting to control mouse clicking automatickly. I want to mouse click on some locatio...

plus d'un an ago | 0 answers | 0

### 0

answersQuestion

creating array of strings from recieved data

Hello,my serial Comm sends over and over abcd/n which in matlab abcd i wanted to create and array of abcd strings as shown bell...

presque 2 ans ago | 1 answer | 0

### 1

answerQuestion

standart slicing not working on my vector

Hello i Have the following code: val=fscanf(ser); var_hex=dec2hex(uint8(val)) y = reshape(var_hex.', 1, []) which gives me...

presque 2 ans ago | 0 answers | 0

### 0

answersQuestion

weird behavior of matlab serial communication protocol

If is send it 1F 2F 3F FF \n in endless loop (I defined LF to be the terminator) then it sends shows me the a huge block of dat...

presque 2 ans ago | 0 answers | 0

### 0

answersQuestion

sticking together 4 hex bytes question

Hello I have four DECIMAL numer for example 31(1F) 47(2F) 63(3F) FF(255) how using those decimal numbers i get a HEX number of ...

presque 2 ans ago | 2 answers | 0

### 2

answersQuestion

LF terminator stops working when sending data

Hello,I have defined the port as following sObject=serial('COM4','BaudRate',115200,'TimeOut',1,'Terminator','LF') sObject.Byte...

presque 2 ans ago | 0 answers | 0

### 0

answersQuestion

fscanf of live stream question

Hello I have written the following code for counting how much '\n' chars we have so far. i assume fscanf holds the char recieve...

presque 2 ans ago | 0 answers | 0

### 0

answersQuestion

serial communication shows huge batch istead of steady small bursts

Hello i am sending threw my microcontroller to MATALB 4 uint8_t variables 0x2F,0x06,0x8F,0x3F and for signalling the end of th...

presque 2 ans ago | 1 answer | 0

### 1

answerQuestion

coverting string to ascii value in Matlab

Hello the letter 'a' is 61 why in matlab i get NAN?

presque 2 ans ago | 1 answer | 0

### 1

answerQuestion

Matlab having problem interpreting streamed string into numbers.

Hello , i am sending 0x61 over and over which is the letter 'a' to matlab as shown bellow. But when i want to convert the recie...

presque 2 ans ago | 1 answer | 0