Hi, David, You code also worked for me. Thanks.
Best Huayi On 2016年08月27日 20:50, David Joyner wrote:
On Fri, Aug 26, 2016 at 11:39 PM, Wei, Huayi <[email protected]> wrote:Hi, Guys, I solve an ode and get an implicit solution as following, and my question is how to plot `f` by `implicit_plot` command. ``` var('t') y = function('y')(t) de = diff(y, t)/((2-y)*y) == 1 f = desolve(de, y, [0, 10]) # the solution is -1/2*log(y(t) - 2) + 1/2*log(y(t)) == t + 1/2*log(10) - 1/2*log(8) ```sage: var("t,y") (t, y) sage: implicit_plot(-1/2*log(y - 2) + 1/2*log(y) == t + 1/2*log(10) - 1/2*log(8), (t, 0, 2), (y, 2.1,10), figsize=4, axes="true" ) worked for me. For more info on the syntax, see here http://doc.sagemath.org/html/en/reference/plotting/sage/plot/contour_plot.html#sage.plot.contour_plot.implicit_plot and also here http://sagemath.wikispaces.com/implicit_plotThanks Huayi -- You received this message because you are subscribed to the Google Groups "sage-edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sage-edu. For more options, visit https://groups.google.com/d/optout.
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