August 2001
Intermediate to advanced
656 pages
18h 5m
English
Content preview from VB .NET Language in a Nutshell
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Name
Sign Function
Class
System.Math
Syntax
Sign(value)-
value Use: Required
Data Type: Any numeric type, including Decimal
A numeric expression
Return Value
Integer
Description
Determines the sign of a number
Rules at a Glance
The return value of the Sign function is
determined by the sign of value, as
follows:
|
If number is |
|
|---|---|
|
Positive |
1 |
|
Zero |
0 |
|
Negative |
-1 |
Programming Tips and Gotchas
Signis useful in cases in which the sign of a quantity defines the sign of an expression. For example:lngResult = lngQty * Sgn(lngValue)
This is a Shared member, so it can be used without creating any objects.
If you are using the
Signfunction to evaluate a result toFalse(0) orTrue(any nonzero value), you could use theCBoolfunction instead.A major use for
Signis to determine the sign of an expression.
VB .NET/VB 6 Differences
The name of this function has changed. In VB 6, it is named
Sgn. In VB .NET, it is
named Sign and is a member of the Math class of
the System namespace.
See Also
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.