diff options
| author | Marcus Müller <marcus@hostalia.de> | 2018-08-31 23:02:22 +0200 |
|---|---|---|
| committer | Marcus Müller <marcus@hostalia.de> | 2018-08-31 23:02:22 +0200 |
| commit | 254fe5e89403d4de1fa6663d09efdf946996aff3 (patch) | |
| tree | 62877d7ac7fdedf6c397c51e22ac6f97eba97ddf /gnuradio-runtime/lib/math/gen_sine_table.py | |
| parent | 896d1c9da31963ecf5b0d90942c2af51ca998a69 (diff) | |
| parent | 5ad935c3a3dd46ce2860b13e2b774e4841784616 (diff) | |
Merge remote-tracking branch 'origin/next' into merge_next
Diffstat (limited to 'gnuradio-runtime/lib/math/gen_sine_table.py')
| -rw-r--r--[-rwxr-xr-x] | gnuradio-runtime/lib/math/gen_sine_table.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gnuradio-runtime/lib/math/gen_sine_table.py b/gnuradio-runtime/lib/math/gen_sine_table.py index d7d11eff11..5b459fa1a3 100755..100644 --- a/gnuradio-runtime/lib/math/gen_sine_table.py +++ b/gnuradio-runtime/lib/math/gen_sine_table.py @@ -20,6 +20,8 @@ # Boston, MA 02110-1301, USA. # +from __future__ import division +from __future__ import unicode_literals import math import sys @@ -38,8 +40,8 @@ def gen_approx_table (f, nentries, min_x, max_x): for i in range (nentries): a = (i * incx) + min_x b = ((i + 1) * incx) + min_x - m = (f(b)-f(a))/(b-a) - c = (3*a+b)*(f(a)-f(b))/(4*(b-a)) + (f((a+b)/2) + f(a))/2 + m = (f(b)-f(a)) / (b-a) + c = (3*a+b)*(f(a)-f(b))/(4*(b-a)) + (f((a+b)/2) + f(a))//2 abs_error = c+m*a-f(a) r.append ((m, c, abs_error)) return r |