PoZeTools v0.56

Enter your poles and zeros [and an optional gain] below:
# DC filter example: P = 0.98 Z = 1 # Empty lines and lines starting with # are ignored. Supply- # ing no gain invokes auto-normalization. Both polar and # cartesian notations are accepted. The order in which poles, # zeros and the (complex) gain appear does not matter. # Some valid lines are: P = 0.98 exp(-0.25 pi j) # P = j - 0.88 # Z = -j # Z = 0.6 + 0.6 j # G = exp(-j pi)
Read 1 zero and 1 pole. No gain supplied, automatically normalizing.

Logarithmic frequency scale.    

Frequency domain:

Time domain:

 a(0) = 0.990000000000
 a(1) = -0.990000000000

 b(0) = 1.000000000000
 b(1) = -0.980000000000

Linear difference equation:

  y[n] -0.98 y[n-1] = 0.99 x[n] -0.99 x[n-1]