Floating point numbers may use exponential notation (e.g.,
```
10e3`'' or ```
10E3`'') or must contain the
decimal period. For example, the floating point zero can be given as
```
0.`'', ```
0.0`'', or ```
0E1`'', but
not as just ```
0`''.

Fri Mar 29 17:44:15 EST 1996