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Last seen: 10 days ago | Active since 2017

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recreating nyquist regions using FFT
Hello,Using code bellowI have sampled a signal and made FFT to see the spectral picture of the time domain signal. the plot bell...

10 days ago | 1 answer | 0

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question regarding ploting a table as a surface
Hello, i have the following EM field shown bellow, i have extracted the field into a table attached as zipped txt and a printscr...

3 months ago | 2 answers | 0

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link to a figure of matlab
Hello , i have a matlab code that creating a figure, Its very problematic for me to do snipping tool print screens and put then...

3 months ago | 0 answers | 0

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question regarding sum(m,3) command
hello, i have a three dimentional matrices m. output of sum(m,3) return a two dimentional matrices. What kind of summing being...

3 months ago | 2 answers | 0

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converting vector result into matrices for surf command
Hello,in a program there is feald on aplane shown bellow. the field data was exports and i am trying to recreate this fiels in ...

4 months ago | 2 answers | 0

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special data tip in matlab
Hello i have a figure with multiple plots i want to make a data tip line as shown bellow. so the points of intersectionof the r...

4 months ago | 0 answers | 0

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problem running optimization SOLVE function in matlab
Hello, I am trying to run an optimization so i get my S function at some biunds as shown bellow. I got the error from the optim...

5 months ago | 0 answers | 0

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optimization of a function with array of parameters using matlab solver ga
Hello, i i am trying to optimize function S, so it will get values between 0 and 10 using its E_opt parameter coefficients whic...

5 months ago | 1 answer | 0

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help using matlab solve ga function for optimization of non linear expression
Hello , i have this non linear function called "h" shown in the code bellow. I want to optimize k1, k2 ,a ,b parameters so th...

5 months ago | 1 answer | 0

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optimization of a function using optiminzation toolbox commands
Hello,I have built a function in the code shown bellow.The function is plotted as follows. my goal is to lower the lobe at X=-2...

5 months ago | 0 answers | 0

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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...

6 months ago | 1 answer | 0

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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...

6 months ago | 1 answer | 0

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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 ...

7 months ago | 1 answer | 0

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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...

7 months ago | 2 answers | 0

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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...

8 months ago | 1 answer | 0

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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...

9 months ago | 2 answers | 0

2

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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. ...

1 year ago | 0 answers | 0

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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...

1 year ago | 1 answer | 0

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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...

1 year ago | 1 answer | 0

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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...

1 year ago | 0 answers | 0

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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 ...

1 year ago | 0 answers | 0

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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...

1 year ago | 0 answers | 0

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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...

1 year ago | 1 answer | 0

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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...

1 year ago | 2 answers | 0

2

answers

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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...

1 year ago | 1 answer | 0

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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...

1 year ago | 1 answer | 0

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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...

2 years ago | 0 answers | 0

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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...

2 years ago | 1 answer | 0

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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 ....

2 years ago | 2 answers | 0

2

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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...

2 years ago | 0 answers | 0

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