Solved

how to change a possitive value to negative

Posted on 2007-11-22
4
159 Views
Last Modified: 2010-04-05
Hello guys,

I have a variable with this value 145.74
I would like to change the value to - 145.74

To change from negative to possitive I can use ABS

and from possitive to negative ?

Thanks
0
Comment
Question by:hidrau
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 13

Accepted Solution

by:
rfwoolf earned 500 total points
ID: 20335699
0 - 145.74 ?
0
 
LVL 19

Expert Comment

by:MerijnB
ID: 20335707
var d: double;
begin
 d := 145.74;
 d := d * -1;
 // d is now -145.74
end;
0
 
LVL 13

Expert Comment

by:rfwoolf
ID: 20335762
Thanks. You could have waited a little longer before accecpting your solution, because MerijnB's answer is also correct. Let us know if you need anything else :)
0
 
LVL 19

Expert Comment

by:MerijnB
ID: 20336096
don't understand, how does rfwoolf's answer change a value from positive to negative :)

I guess I misunderstand the question... :?
0

Featured Post

What Is Transaction Monitoring and who needs it?

Synthetic Transaction Monitoring that you need for the day to day, which ensures your business website keeps running optimally, and that there is no downtime to impact your customer experience.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
Go is an acronym of golang, is a programming language developed Google in 2007. Go is a new language that is mostly in the C family, with significant input from Pascal/Modula/Oberon family. Hence Go arisen as low-level language with fast compilation…
This theoretical tutorial explains exceptions, reasons for exceptions, different categories of exception and exception hierarchy.
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question