hi
f(x,y)=y^2-x/2
a=[]
a.append(implicit_plot(f(x,y)==1,(x,-9,9),(y,-9,9)))
a.append(implicit_plot(f(x,y)==2,(x,-9,9),(y,-9,9)))
show(a[0]+a[1])
if i make a for, in order to plot several {f(x,y)=k}, how can i write the 'show' ?
One possibility :
sage: f(x,y) = y^2-x/2
sage: sum(map(lambda u:implicit_plot(f-u, (-9, 9), (-9, 9)), range(5)))
Launched png viewer for Graphics object consisting of 5 graphics primitives
Another :
sage: contour_plot(f, (-9, 9), (-9, 9), contours=range(5), labels=True, fill=False)
HTH,
Asked: 2022-02-03 20:18:03 +0100
Seen: 150 times
Last updated: Feb 04 '22
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