Vectors

[Nick.Trout@...]

Hi I'm attempting to add a 3D vector class to Lua and I wondered if anyone
had any thoughts on the matter. What would be the most efficient manner?
(ie. fastest). Can I use tags to overload the arithmetic operators. eg.
vec3= vec1 + vec2 ?

Be something like: struct _vector3 { float x,y,z; };

Cheers,
Nick