What is argmin function described in below equation? [closed] - matlab

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What the function argmin do here? Please explain or give any hint regarding it. I am needed to implement this function on MATLAB. Is there any direct command avaiable there?

argmin is the argument (k) that minimizes the function value (sigma_ij), so the argmin will be 1, 2, 3, or 4

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Multidisciplinary function handle in MATLAB [closed]

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I want to know is it possible to make multidisciplinary function handle in MATLAB and if possible, how can I do this.
I assume you mean a "multivariate function" since a "multidisciplinary function" is completely non-nonsensical.
f=#(x,y)x+y
f(3,2)
ans =
5

How can I Type the expression (x+3)/((x^2)-3x+2) into MATLAB. I keep getting errors [closed]

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(x+3)/((x^2)-3x+2)
The variable is x=1
I enter this code as is, and get the error that
x^2-3x+2
|
Error: Unexpected MATLAB expression.
here is how you do it.
x^2-3*x+2

How can you two color in plot matlab? [closed]

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I want to make a script to show me a picture like this:
https://www.dropbox.com/s/zzx2chi0jbclf66/Figura.jpg
The code is:
a = load('file.txt');
x = a(:,1);
y = a(:,4);
area(x,y)
But not like making out two colors, I think bruh command is used but not sure?
This submission on the File Exchange might also help:
http://www.mathworks.co.uk/matlabcentral/fileexchange/7255-areashade

Solving a system of equations on Maple [closed]

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solve({4*a = 443*a1/(3.14)+a0, 7*a = 20*a1/(3.14)+a0, 105*a = 543*a1/(3.14)+a0}, {a, a1.a0});
Could someone tell me why MAPLE doens't compute this solution?
It doesn't give anything.
Thank you.
You have a typo. The second argument should be {a, a1, a0} not {a,a1.a0}
solve({4*a = 443*a1/(3.14)+a0, 7*a = 20*a1/(3.14)+a0, 105*a = 543*a1/(3.14)+a0}, {a, a1, a0});

How to convert a negative to non-negative in matlab [closed]

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This is rather a general question.
Actually I have a value x=-77 (dBm) and I want to change it to dB so the command would be y=pow2db(x). The problem is it does not accept negative values. So how do I change this to non-negative and then calcuate y?
Your comments are highly appreciated.
Thanks in advance
You can use the abs() function Matlab provides.
example:
abs([-2 2])
ans=
2 2
Still check what you are doing. Logarithms work in a special way, and you may not be wanting the logarithm of the absolute... just check :D
I would guess one of these two possibilities:
y = pow2db(abs(x))
or
y = pow2db(abs(x)) *sign(x)
Not sure whether either one of them would be meaningfull though.