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Can I please know what the meaning of these commands are, and what they do?

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Hind Aljallaf
Hind Aljallaf 2023-5-15
回答： Amith 2023-5-22
Can I please know what the meaning of these commands are, and what they do?

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Amith
Amith 2023-5-22
As per my understanding you wanted to know the meaning of the commands provided ,here is a brief summary of the commands with their documentation link.
Filter
y = filter(b,a,x) filters the input data x using a rational transfer function defined by the numerator and denominator coefficients b and a.
For further detailed documentation on filter please refer to this link –
1-D digital filter - MATLAB filter (mathworks.com)
Length
length(X) returns the length of the largest array dimension in X
For further detailed documentation on length please refer to this link –
Length of largest array dimension - MATLAB length (mathworks.com)
Zeros
Create array of all zeros
For further detailed documentation on zeros please refer to this link –
Create array of all zeros - MATLAB zeros (mathworks.com)
Randi
Randi provides Uniformly distributed pseudorandom integers
For further detailed documentation on randi please refer to this link –
Uniformly distributed pseudorandom integers - MATLAB randi (mathworks.com)
Cos
Cos function provides Cosine of argument in radians
For further detailed documentation on Cos please refer to this link –
Cosine of argument in radians - MATLAB cos (mathworks.com)

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