update 11

2015-10-22 04:04:30 -07:00 · 2015-10-22 04:04:30 -07:00 · 91cc02a1a4
parent 034d8632f5
commit 91cc02a1a4
1 changed files with 2 additions and 2 deletions
--- a/lib/planes.py
+++ b/lib/planes.py
@ -27,9 +27,9 @@ def s2z_two(b, a, fc, srate, gain=1):
    converts s-plane coefficients to z-plane for digital usage.
    hard-coded for 3 coefficients.
    """
-    if (len(b) < 3):
+    if len(b) == 2:
        b = (b[0], b[1], 0)
-    if (len(a) < 3):
+    if len(a) == 2:
        a = (a[0], a[1], 0)
    w0 = tau*fc/srate
    cw = np.cos(w0)