source:
trunk/anuga_work/development/2010-projects/anuga_1d/base/util.py
| Last change on this file was 7884, checked in by steve, 13 years ago | |
|---|---|
| File size: 264 bytes | |
| Rev | Line | |
|---|---|---|
| [7884] | 1 | """ |
| 2 | This module contains various auxiliary function used by pyvolution. | |
| 3 | """ | |
| 4 | ||
| 5 | ||
| 6 | import numpy | |
| 7 | ||
| 8 | def mean(x): | |
| 9 | return numpy.sum(x)/len(x) | |
| 10 | ||
| 11 | ||
| 12 | def gradient(x0, x1, q0, q1): | |
| 13 | ||
| 14 | if q1-q0 != 0: | |
| 15 | a = (q1-q0)/(x1-x0) | |
| 16 | else: | |
| 17 | a = 0 | |
| 18 | ||
| 19 | return a | |
| 20 | ||
| 21 |
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