Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

To resolve issues starting MATLAB on Mac OS X 10.10 (Yosemite) visit: http://www.mathworks.com/matlabcentral/answers/159016

cheby1

Asked by Tom on 27 Feb 2012

Hi, I'm having problems finding something out something simple.

If I'm given this: -

[b,a] = cheby1(8,1,0.4); 
y = filter(b,a,x);

then what do the three digits in the brackets after 'cheby1' mean?

Also what does b, a and x mean?

Many thanks,

Tom

2 Comments

Matt Fig on 2 Nov 2012

Hi, I'm having problems finding something out something simple.

If I'm given this: -

[b,a] = cheby1(8,1,0.4); y = filter(b,a,x);

then what do the three digits in the brackets after 'cheby1' mean?

Also what does b, a and x mean?

Many thanks,

Tom

Matt Fig on 2 Nov 2012

Tom's question

Hi, I'm having problems finding something out something simple.

If I'm given this: -

[b,a] = cheby1(8,1,0.4); y = filter(b,a,x);

then what do the three digits in the brackets after 'cheby1' mean?

Also what does b, a and x mean?

Many thanks,

Tom

Tom

Tags

Products

No products are associated with this question.

2 Answers

Answer by Kevin Holst on 27 Feb 2012
Accepted answer

0 Comments

Kevin Holst
Answer by Honglei Chen on 27 Feb 2012

This is clearly explained in documentation.

doc cheby1

http://www.mathworks.com/help/toolbox/signal/ref/cheby1.html

x is the input signal, also see the doc

doc filter

0 Comments

Honglei Chen

Contact us