Whitespace cleanup

examples/Example240_FiniteElementVelocities.jl

@@ -10,16 +10,16 @@ Solve the equation
 ```
 in $\Omega=(0,L)\times (0,H)$ with a homogeneous Neumann boundary condition
 at $x=0$, an outflow boundary condition at $x=L$, a Dirichlet inflow
-condition at $y=H$, and a homogeneous Dirichlet boundary condition 
+condition at $y=H$, and a homogeneous Dirichlet boundary condition
 on part of $y=0$.
 
-The analytical expression for the velocity field is $v(x,y)=(x^2,-2xy)$ in 
+The analytical expression for the velocity field is $v(x,y)=(x^2,-2xy)$ in
 cartesian coordinates and $v(r,z)=(r^2,-3rz)$ in cylindrical coordinates, i.e.
-where the system is solved on $\Omega$ to represent a solution on the solid 
+where the system is solved on $\Omega$ to represent a solution on the solid
 of revolution arising from rotating $\Omega$ around $x=0$.
 
 We compute the solution $u$ in both coordinate systems where $v$ is given
-as an analytical expression and as a finite element interpolation onto 
+as an analytical expression and as a finite element interpolation onto
 the grid of $\Omega$.
 =#