Geometric (Classical) MultiGrid

1
Geometric (Classical) MultiGrid
2
Bilinear interpolation
(Urt,Vrt)
(Ult,Vlt)
(x4,y4)
(x3,y3)
i
(x0,y0)
S(i)
(x2,y2)
(x1,y1)
(Ulb,Vlb)
(Urb,Vrb)
C(S(i))rb,rt,lb,lt
3
(Urt,Vrt)
(Ult,Vlt)
(x4,y4)
(x3,y3)
i
(Ul,Vl)
(Ur,Vr)
(x0,y0)
S(i)
(x2,y2)
(x1,y1)
(Ulb,Vlb)
(Urb,Vrb)
4
From (x,y) to (U,V) by bilinear intepolation