Lines Matching full:pi

374     u   =  sin(2 pi x)/4 pi^2
375     v   = -y cos(2 pi x)/2 pi
377     f_x = -sin(2 pi x)
378     f_y = 2 pi y cos(2 pi x)
382     -\Delta u + f = <sin(2pi x),  -2pi y cos(2pi x)> + <-sin(2pi x), 2pi y cos(2pi x)> = 0
386     \nabla \cdot u = cos(2pi x)/2pi - cos(2pi x)/2pi = 0
398     u   =  sin(2 pi x) cos(2 pi y)/4 pi^2
399     v   = -sin(2 pi y) cos(2 pi x)/4 pi^2
401     f_x = -2sin(2 pi x) cos(2 pi y)
402     f_y =  2sin(2 pi y) cos(2 pi x)
406 …-\Delta u + f = <2 sin(2pi x) cos(2pi y),  -2 sin(2pi y) cos(2pi x)> + <-2 sin(2pi x) cos(2pi y), …
410     \nabla \cdot u = cos(2pi x) cos(2pi y)/2pi - cos(2pi y) cos(2pi x)/2pi = 0
1214     #    I believe the nullspace is sin(pi y)