Homogeneous Equation in $$x/y$$

Rarely Tested

Homogeneous Equation in $$x/y$$

If:

$$\frac{dx}{dy}=F\left(\frac{x}{y}\right)$$

put:

$$x=vy$$

Then:

$$\frac{dx}{dy}=v+y\frac{dv}{dy}$$

Usage

- Used when the equation is more naturally expressed in terms of $$x/y$$.

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