 
 
 
8.4.1  Domain of a function
The domain command
finds the domain of a function.
- 
domain takes one mandatory argument and one optional
argument:
- 
expr, an expression involving a single variable.
- Optionally, x, the variable, which by default
will be x.
 
- domain(expr ⟨,x ⟩) returns the
domain of the function defined by expr.
Examples
Find the domain of the function f(x)=√1−√2−√x−3:
| domain(sqrt(1-sqrt(2-sqrt(x-3))),x) | 
 
 
