Here is my script
def shaded_area_plot(f,g,c,d,a,b):
step = 0.01
vf = [(x,f(x)) for x in srange(a, (b+step), step)]
vg = [(x,g(x)) for x in srange(b, (a-step), -step)]
sha = polygon(vf + vg, rgbcolor='grey')
return(plot(f, (c,d)) + plot(g, (c,d), rgbcolor='red') + sha)
Most likely that's not well-written but I hope that's at least clear.
for example, then shaded_area_plot(sin(x), lambda x:0, 0, pi, 1, 2)
give me the shaded area between the sine curve and the x-axis over
[0,pi]
I hope there is a better solution to my problem.
On Nov 12, 9:22 am, Jason Grout <[EMAIL PROTECTED]> wrote:
> pong wrote:
> > I defined a function which show the shaded area between the graphs of
> > two functions over an interval (maybe such function already exist?).
> > For example,
>
> > plot_shaded_area(sin(x), cos(x), 1,2)
>
> > show the shaded area between sine and cosine over [1,2]. Well, my
> > script doesn't work if I change cos(x) to 0. The reason is 0 is an
> > integer but not a function. I get around that by
>
> > plot_shaded_area(sin(x), lambda x:0, 1,2)
>
> > but I would like a more "natural" syntax as I don't want to scare my
> > students off from using SAGE.
> > Any help? Thanks.
>
> Actually, could you post your script? There might an easier way to
> handle this.
>
> Jason
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