6.6.7 Testing if an object is in an interval
The contains command determines if an object is in an interval.
-
contains
takes two arguments:
-
I, an interval.
- obj, an object.
- contains(I,obj) returns 1 if
obj is in I, meaning that either obj is a
number which is contained in I or obj is an interval
which is a subset of I. It returns 0 otherwise.
Examples