title: Where have the cross and dot products gone in DirectX10?
body: <p>In directX9 there were functions to deal with D3DXVECTOR3's in order to calculate dot and cross products:</p>
  
  <p><a href="http://msdn.microsoft.com/en-us/library/windows/desktop/bb205508(v=VS.85).aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/windows/desktop/bb205508(v=VS.85).aspx</a></p>
  
  <p><a href="http://msdn.microsoft.com/en-us/library/windows/desktop/bb205507(v=VS.85).aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/windows/desktop/bb205507(v=VS.85).aspx</a></p>
  
  <p>However these have dissappeared from the D3DXMath library in DX10.</p>
  
  <p><a href="http://msdn.microsoft.com/en-us/library/windows/desktop/bb205164(v=vs.85).aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/windows/desktop/bb205164(v=vs.85).aspx</a></p>
  
  <p>I assume they must have gone somewhere? My question is where, and also why? Thank you.</p>