Hi
I don't understand the result with inverse Z transform, for example with this equation:
X(z)=1/((z-1)²*z²)
The result is:
x(k)=2.d(k-1)+d(k-1)-2.1(k-1)+(k-1).1(k-1) Where d is Dirac.
But Neoploys return:
x(k)=-2.1^(k-1)+(k-1).1^(k-2)
Where are Dirac, and why the last is (k-2) ?!?
Second example:
X(z)=(z²+z+2)/((z-1)(z²-z+1))
I fund Cos and Sin in the result.
But the HP return complex, so I don't know how "translate" it...
Thanks a lot for your help.
Nico
I don't understand the result with inverse Z transform, for example with this equation:
X(z)=1/((z-1)²*z²)
The result is:
x(k)=2.d(k-1)+d(k-1)-2.1(k-1)+(k-1).1(k-1) Where d is Dirac.
But Neoploys return:
x(k)=-2.1^(k-1)+(k-1).1^(k-2)
Where are Dirac, and why the last is (k-2) ?!?
Second example:
X(z)=(z²+z+2)/((z-1)(z²-z+1))
I fund Cos and Sin in the result.
But the HP return complex, so I don't know how "translate" it...
Thanks a lot for your help.
Nico