# 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()
```

Please start posting anonymously - your entry will be published after you log in or create a new account.

Asked: ** 2014-11-11 08:33:58 +0200 **

Seen: **158 times**

Last updated: **Nov 12 '14**

How do I define a piecewise function?

Piecewise, Sage VS Mathematica

Coercion problem while defining piecewise function

Contour Plot not working with pseudo-piecewise function

Plot picewise function + infinity, error message

Two piecewise defined functions in one plot

Plot every piece of a piecewise defined function in another color?

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.