Unfamiliar notation found in a computer science book

Posted by cornjuliox on Stack Overflow See other posts from Stack Overflow or by cornjuliox
Published on 2011-11-13T09:27:20Z Indexed on 2011/11/13 9:52 UTC
Read the original article Hit count: 373

Filed under:

boolean-expression

I'm reading through this computer science book and throughout the book I see a number of things written like so:

example 1

and then there's this:

example 2

and then this: example 3

What kind of notation is the "Boolean Expression" in example 1 written in? I've never seen anything like it before and I'm tempted to assume that whoever wrote and/or scanned this book in fell asleep at the keyboard, and assuming that it's even valid, what about the 3rd example? I'm pretty sure that's not C++ or VB.NET they're showing there.

Related posts about boolean-expression

Boolean Expression Evaluation in Java

as seen on Stack Overflow - Search for 'Stack Overflow'
Hey everyone, Is there a relatively simpler (when compared with writing a parser) way to evaluate boolean expressions in Java? I do not want to use the JEP library. I have a String expression something like: (x 4 || x < 8 && p 6) [ I will replace the variables with values. Is there a… >>> More
Using xsl:key to store result of boolean expression

as seen on Stack Overflow - Search for 'Stack Overflow'
In my transformation there is an expression some elements are repeatedly tested against. To reduce redundancy I'd like to encapsulate this in an xsl:key like this (not working): <xsl:key name="td-is-empty" match="td" use="not(./node()[normalize-space(.) or ./node()])" /> The expected behaviour… >>> More
How to let an average user design a boolean expression graphically

as seen on Stack Overflow - Search for 'Stack Overflow'
In our application there's a list of customers, and a list of keywords (among other things). Each customer can have a number of keywords, but it's not mandatory. So for instance, one customer can have the keywords "retail" and "chain", one can have only "contractor" and a third can have none at all… >>> More
Boolean expression in PHP?

as seen on Stack Overflow - Search for 'Stack Overflow'
case 1: echo false . 'test'; output: test case 2: echo true . 'test'; output: 1test Why true cast to 1 but false nothing? >>> More
Unfamiliar notation found in a computer science book

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm reading through this computer science book and throughout the book I see a number of things written like so: and then there's this: and then this: What kind of notation is the "Boolean Expression" in example 1 written in? I've never seen anything like it before and I'm tempted to assume… >>> More

Developer IT