Customer Review

11 of 11 people found the following review helpful
4.0 out of 5 stars This is a good book; Now here's what it's missing..., August 6, 2000
This review is from: APL 2 at a Glance (Paperback)
This book is a useful introduction to APL2 -- IBM's modern dialect of the APL language. APL2 is available for many platforms, including Windows, OS2, RS6000 and IBM mainframes.
The first thing to keep in mind about the book is that IBM's bundling it with IBM APL2/Windows and IBM APL2/OS2, so if you're planning on buying these implementations, perhaps you want to wait and get the copy with your software. Otherwise, if you're using the free TryAPL2 or your site has a license for APL2 and you need the documentation, then this book is very useful and helpful.
Having said this, here is what the book WON'T teach you:
- Shared variables. How APL2 manages communication with other processors, with other APL2 systems, etc. This is a very important topic.
- The associated and auxiliary processors: How APL2 manages screen IO, how APL2 talks to REXX or to your operating system, how to manage files from APL2 (!!!), etc.
You should keep these in mind because when you'll be done with the APL2 at a Glance book, you might wonder, for example, how to do file IO in APL2 -- you'll need the APL2 user guide to help you with this and other topics.
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