NDSolveValue
NDSolveValue[eqns,expr,{x,xmin,xmax}] gives the value of expr with functions determined by a numerical solution to the ordinary differential equations eqns with the independent variable x in the range xmin to xmax.
NDSolveValue[eqns,expr,{x,xmin,xmax},{y,ymin,ymax}] solves the partial differential equations eqns over a rectangular region.
NDSolveValue[eqns,expr,{x,y}∈Ω] solves the partial differential equations eqns over the region Ω.
NDSolveValue[eqns,u,{t,tmin,tmax},{x,y}∈Ω] solves the time-dependent partial differential equations eqns over the region Ω.
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