Coordinate Method
We solve first order PDE using the coordinate method, instead of the method of characteristics. This boils down to finding clever variables and then using the chain rule to transform a complicated partial differential equation into one that is much easier to solve. In fact we will end up getting one of the simple PDE that we have covered before! This is a must-see for any multivariable calculus lover, enjoy!
Simple PDE: https://youtu.be/zMWXg-NIdJw
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