| 修訂 | b7bae9fe5845e6defa8f821cc0b3993a4cecd435 (tree) |
|---|---|
| 時間 | 2007-03-21 06:08:08 |
| 作者 | iselllo |
| Commiter | iselllo |
I modified the code Python-codes/ode3_solver_test.py.
The modifications are trivial (different BC's and no need to define
first x and then say x=t; so I just use t now).
Python-codes/ode3_solver_test.py (diff)| @@ -10,20 +10,20 @@ | ||
| 10 | 10 | |
| 11 | 11 | k=10. |
| 12 | 12 | y0_0=1. |
| 13 | -y1_0=1. | |
| 13 | +y1_0=0. | |
| 14 | 14 | |
| 15 | 15 | y0 = [y0_0, y1_0] |
| 16 | 16 | |
| 17 | -x = arange(0,4.0, 0.01) | |
| 17 | +t = arange(0,4.0, 0.01) | |
| 18 | 18 | |
| 19 | -t=x | |
| 20 | -y = integrate.odeint(func, y0, t) | |
| 19 | + | |
| 20 | +y = integrate.odeint(func, y0, t,printmessg=1) | |
| 21 | 21 | |
| 22 | 22 | |
| 23 | 23 | print 'the shape of the Lorenz solution is', shape(y) |
| 24 | 24 | |
| 25 | 25 | |
| 26 | -pylab.plot(x,y[:,1]) | |
| 26 | +pylab.plot(t,y[:,1]) | |
| 27 | 27 | pylab.xlabel('Time') |
| 28 | 28 | pylab.ylabel('y(t)') |
| 29 | 29 | pylab.title('solution') |
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