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2022-10-13 06:08:25 +0200 received badge  Popular Question (source)
2014-11-11 13:03:00 +0200 answered a question Am I not inside the domain ?

Thank you so much Danke sehr, ndomes Merci !

2014-11-11 08:33:58 +0200 asked a question Am I not inside the domain ?
x=var('x')
f = Piecewise([[(0,pi/2),-1],[(pi/2,pi),2]])
plot(f(x),(x,0,pi))

**?

ValueError: Value not defined outside of domain.

?**