From TheBestLinks.com
In computing, numerical tower refers to the set of number types (datatypes that represent numbers) in a given programming language.
The Scheme standard defines the following:
+-------+
|Integer|
+---------+
| Rational|
+-----------+
| Real |
+-------------+
| Complex |
+---------------+
| Number |
+---------------+
Each type in the tower conceptually "sits on" a more fundamental type, so an Integer is a Rational is a ... Number, but the inverse is not necessarily true.
Typically a language will support a modified version of this numerical tower; Kawa Scheme, for example, extands this basic numerical tower with a Quantity type that's even more general than Number. Another popular variant is having both exact and inexact versions of the tower or parts of it. Some languages and language implementations do not support a full numerical tower or support it only in a limited way.
Related links
Top visited
0 of
0 links
[no links posted yet]
>> place link >>
Discussion
Last posted
0 of
0 messages
[no messages posted yet]
>> post message >>
Watch
You can
add this article to your own "watchlist" and receive e-mail notification about all changes in this page.
