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matlab code pc independant runtime question
Hello, i have a matlab code,each PC has a different computation power,even using Matlabs tic toc we get the time code ran given ...

8 months ago | 0 answers | 0

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answers

Question


loop causes enlargement of array
Hello, my theta vector 2X1 two values needs to be updated each itteration. instead i get theta to be size 1000 (as the number o...

8 months ago | 1 answer | 0

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Question


python to matlab [1,x] form question
Hello ,there is a trick in python to turn every matrices of NX2 into an NX2 matrices where the first column is all '1' as shown...

8 months ago | 1 answer | 0

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Question


matlabs polyfit not working correctly problem
Hello, i have a vector called "mean_vec" which consists of 81 values of " -0.1175 -0.1181 "-0.1175 -0.1194 -0.1197 ...

8 months ago | 1 answer | 0

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Question


regress function itterations number
Hello, is there a way to know hoe namy itterations regress function made to reach its oprimal solution? Thanks.

8 months ago | 0 answers | 0

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Question


zero padding between data
Hello, i have a vector shown bellow, how do i insert two zeros in between every bumber as shown bellow. Thanks. a=[1,2,3,4] a...

8 months ago | 1 answer | 0

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Question


aliasing in frequency domain problem
Hello ,i am trying to show frequency domain transform of 3 sinuos signal.I samples it twice the frequency of the highest frequen...

8 months ago | 1 answer | 0

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Question


polar reflection coefficient to impedance gamma2z question
Hello, how do i input the polar reflection coefficient shown bellow into gamma2z with z0=50? Thanks

8 months ago | 0 answers | 0

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Question


mvregress itterations and error definition
Hello, i am trying to estimate a 100X1 vector using 100X2 matrices (B is 2X1 ) B is my coeficient solution. Howeer there is a p...

8 months ago | 0 answers | 0

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Question


FIR filter sampling question
Hello, what is the meaning of fc/fs ? i cant see the logic of defining a signal in that way? Thanks

8 months ago | 0 answers | 0

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Question


understanding cycle sample expression
Hello , I cant understand the logic in this expression "cycles/N = fx/fs" N is number of samples fs- frequency if the whole...

8 months ago | 0 answers | 0

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Question


problem defining linear regression condition
Hello, i have built the first code( the top one which uses matlabs regress command to aproximate [m10;m5] (NX1) vector with [r...

9 months ago | 0 answers | 0

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Question


multiple line plot inside a loop
Hello,I have built linear regression algorithms. but i cant see the final reult onle as shown bellow. is there a way to plot t...

9 months ago | 0 answers | 0

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Question


extracting data from a picture of a chart
Hello, is there a way in Matlab to extract the data vector of the chart from this picture,for example the bottom one? Thanks. ...

9 months ago | 1 answer | 0

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Question


randn command variance problem
Hello, i am trying to create a randomly distributed temperature where the avarage is 310 and variance is 4. I wrote the followi...

9 months ago | 1 answer | 0

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Question


double regression interpretation with vectors
Hello when we enter the following vectoric line shown bellow, we get result B=[b1,b2] so how do i interpret the approximated v...

9 months ago | 0 answers | 0

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Question


solving double equation with random data with regress
Hello,i am trying to find the best values of "eT" and "e" for m5 and m10 equations. I ran the following code, i assume the by d...

9 months ago | 1 answer | 0

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Question


regress with vectors arguments
Hello,i know that in regress we make an estimation of our data using some other vector. In here We have estimation of two data ...

9 months ago | 1 answer | 0

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Question


solving simple multy variable expression
I have built a simple expression where we can see that its solution t-Vs=1 for some reason the only solution it gives me is t=1...

9 months ago | 1 answer | 0

1

answer

Question


solve an exponential equation with 2 variables(view combinations)
Hello, i am trying to solve the following equation shown bellow, by solution i mean to find all the combinations of R2 and Vs2 t...

9 months ago | 0 answers | 0

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Question


2D oplimization plot from derivative inverse function
Hello, for x=1 i have a formula as shown bellow which is a derivative inverse function: I need to plot an optimization ...

9 months ago | 0 answers | 0

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Question


derivarite of inverse of complex function
Hello , i have a function as shown bellow syms x Y=1./(log(x)-1) fplot(finverse(Y),[5,6]) We have made an inverse by using ...

9 months ago | 0 answers | 0

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Question


complex function inverse plot
Hello, i have a plot a function y=1/(ln(x)-0.1) how can i plot X as a function of Y ,when y=[5:0.01:6] Thanks.

9 months ago | 2 answers | 0

2

answers

Question


plotting a polinomial fraction over a strict range
Hello i have a product of the polider function which gave me two polynomial 'q' as numerator 'd' as denominator. q=x+1 q=[1 1]...

9 months ago | 1 answer | 0

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Question


transfer function plot problem
Hello, I have extracted the poles and zeros of a circuit which have the following response shown in a plot bellow. the POLES a...

1 year ago | 1 answer | 0

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answer

Answered
Fourier transform of table signal
Hello i Have attached a src_square.txt source and its spectral fourier transform in the photo shown bellow and How ever the...

1 year ago | 0

Question


Fourier transform of table signal
Hello, i am trying to perform an fft on a signal given by a table as shon bellow and attached in the txt file.I got the result s...

1 year ago | 2 answers | 0

2

answers

Question


table plot into transfer function
Hello, is there a way to convert a bode plot (a table of dots are given) into its transfer function expression? Thanks

1 year ago | 0 answers | 0

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Question


extracting coordinates numbers from array of coordinates
Hello ,I Have a text file which i mannaged to sliceout one subtable from it.(attched txt file) and convert the frequency string...

1 year ago | 1 answer | 0

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Question


text scan question of amplitude and phase
Hello i have a string which is as follows: (-7.30313259052058e-002dB,-4.26354774426478e+000°) how can i extract these two nu...

1 year ago | 1 answer | 0

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