Perp unary operator in Vector2D about slimmath

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The Perp operator you are speaking of is technically the cross product in 2D. 
Because the binary form of the cross product (that gives a vector result) is 
only defined in 3 and 7 dimensions, a normal cross product for Vector2 does not 
exist. However, an 'artifical' cross product can be made for n dimensions by 
taking n-1 vector arguments and giving out a Vectorn result. This means that 
the Perp operator is technically the cross product in 2D. This is the reason we 
don't have a Cross product method in the Vector2 and Vector4 classes.

That aside I will implement the Perp operator and most likely the PerpDot 
operation for Vector2.

As for the double precision version of the library, it is not planned because 
C# does not support #define symbols that take on a value and C# does not 
support macros. This makes it hard to create an elegant solution for both 
single and double precision. Any suggestions will be welcome on this issue.

Original comment by [email protected] on 14 Feb 2011 at 8:04

• Changed state: Accepted
• Added labels: Type-Enhancement
• Removed labels: Type-Defect

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I added Perp and PerpDot methods to the Vector2 structure in r41.

Original comment by [email protected] on 15 Feb 2011 at 1:13

• Changed state: Fixed
• Added labels: ****
• Removed labels: ****