# 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.
```

?**

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.
```

?**

add a comment

1

Plotting a piecewise function is different to plotting 'normal' functions.

```
f = Piecewise([[(0,pi/2),-1],[(pi/2,pi),2]])
f.plot()
```

Asked: **
2014-11-11 01:33:58 -0500
**

Seen: **111 times**

Last updated: **Nov 12 '14**

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