Nobody in the class knows how to do derivitives and only two have had calculus. The teacher has strange expectations since he asks questions about things he has neither taught nor expressed in advance that they must have already been learned. And the semester ends in a a few weeks, so dropping...
This is for a soil physics class that did not have any prerequisites but we are doing differential equations and I stopped my math education way before calculus. (I did my undergrad over 20 years ago). The teacher has shown some partial derivitive equations but this x^3y+xy^3 +5 equation just...
Homework Statement
water potential=-KH=-x^3y+xy^3+5. Is this a solution to the Laplace equation and is yes, show how
Homework Equations
LaPlace equation= Partial derivitive^2 of H/partial deriv x^2+partial deriv^2H/partial deriv y^2=0
The Attempt at a Solution
I have absolutely no...