How can I find the coefficient of trasfer function in detail? (more than 4 unit)

Hi everyone. I want to find the coefficient of my transfer function, more than 4 unit...

script is like this.

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fs = 4300;
sys1 = tf([100 10000], [10 0]);  
sys2 = c2d(sys1, 1/fs)

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and MATLAB shows like this

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Transfer function:
10 z - 9.767

------------
   z - 1

Sampling time: 0.00023256

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than, I want to check the coeffcient 9.767 more than 4 unit.. like a 9.767123456

Could you help me plz? :)

Answer 1

[Laurens Bakker]

Hy Hyetan,

sys2 is an object that has fields num and den, for numerator and denominator, so

sys2.num{:}(2)

is the value you want, and you can print it with more digits by using

fprintf( '%.9f\n', sys2.num{:}(2) );

Cheers,

Laurens

[Hyetan Lee]

hi Bakker.

That's exactly what I want.

Thank you so much! ^^