The use of TFormVector

Blitz3D Forums/Blitz3D Beginners Area/The use of TFormVector

Hmm... this is all rather confusing :)
Basically I am trying to use a vector to find the distance between two points. My code looks like this
 TFormVector par1\oldx,par1\oldy,par\oldz,par1,par2
vx= TFormedX()
vy= TFormedY()
xz= TFormedZ()
delta_length= Sqr(vx*vx)+(vy*vy)+(vz*vz)


Where par1 and par2 are the two points I am finding the distance between and vx,vy and vz are the vectors positions. From what I have read here it dosen't look like I am doing it right :/