Mysterious Indentation Problem

[DeaD_EyE]

The evaluations after return, should shifted in own functions.
Then you can use the functions instead. This will cleanup
the code a little bit. Give them verbs as names.

return ((1/(16*dt))+(1/(8*dz**2))+(1/(4*he*he*dr*dr))+(Biz/(8*dz)))
return ((Nr-1)/(2*dt))+(Bir*(Nr-1)/(2*he*he*dr))+(Biz*(Nr-1)/dz)+((Nr-1)/dz**2)+((Nr-1.5)/(2*he*he*dr*dr))
return (j-1)*((1/(2*dt))+(1/(he*dr)**2)+(1/dz**2)+(Biz/dz))
return (1/(16*dt))+(1/(16*dz**2))+(1/(4*dr*dr*he*he))+(Biz/(8*dz))
return (1/(8*dt))+(2/(8*dz))+(1/(2*he*he*dr*dr))
return ((Nr-1.5)/(he*he*dr*dr))+(Nr-1)*((1/2*dt)+(Bir/(2*he*he*dr))+(Biz/dz)+((1/dz**2)))
return (j-1)*((1/(2*dt))+(1/(he*he*dr*dr))+(1/(dz**2))+(Biz/dz))
return ((Nr-1.5)/(he*he*dr*dr))+(Nr-1)*((1/(2*dt))+(Bir/(he*he*dr))+(Biz/dz)+(1/dz**2))
return (j-1)*((1/dt) + (2/(he*dr)**2) + (2/dz**2))

Instead you'll do this later:

return function_1(dt, dz, he, Biz)