Hi I'm having trouble expanding the following equation for the axially symmetric biharmonic equation in polar co-ordinates.
When I expanded it I got:
But it should be:
Any help would be much appreciated regards,
Callum
Hi I'm having trouble expanding the following equation for the axially symmetric biharmonic equation in polar co-ordinates.
When I expanded it I got:
But it should be:
Any help would be much appreciated regards,
Callum