# Expression NV_VEC,NV_D,NV_S,NV_DS

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 January 25, 2007, 01:43 Expression NV_VEC,NV_D,NV_S,NV_DS #1 J.Y.Shin Guest   Posts: n/a I want to know the meaning of the following expression. 1. real NV_VEC(psi), NV_VEC(A); 2. NV_D(psi, =, F_U(f,t), F_V(f,t), F_W(f,t)); 3. NV_S(psi, *=, F_R(f,t)) 4. NV_DS(psi_vec, =, F_U(f,t), F_V(f,t), F_W(f,t), *, dens);

 January 25, 2007, 15:04 Re: Expression NV_VEC,NV_D,NV_S,NV_DS #2 Sujith Guest   Posts: n/a VEC for vector, D for directions and S for scalar; real NV_VEC(psi--- defines a vector psi[0]i+psi[1]j+psi[2]k NV_D(psi,=,u,v,w)--- assigns values in 3directions to a vector psi = ui+vj+wk NV_S(psi,*=,R) => psi = psi * R (assigns/modifies magnitude) NV_DS(psi_vec,=,u,v,w,*,dens) =>direction & scalar operations psi_vec = (ui+vj+wk)*dens; johnwinter, cdf_user, leoarmas and 13 others like this.

 September 21, 2012, 23:23 #3 New Member   nguyentuan Join Date: Sep 2012 Posts: 5 Rep Power: 6 How about real NV_VEC(A) Mean of letter (A) in above code ?

 February 20, 2014, 07:18 meaning of other commands #4 New Member   PSM Join Date: Sep 2013 Posts: 10 Rep Power: 5 NV_VV NV_cross NV_s nv_v pls can u elaborate the above commands

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