Integrating factor

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Revision as of 21:47, 17 April 2024 by Rice (talk | contribs) (Created page with "'''Integrating factors''' is a method to solve scalar Linear First Order ODE<nowiki/>s. Consider <math>y' + p(t) y = g(t)</math> We multiply bothsides by integrating factor <math>\mu(t)</math> such that the left hand side to be the ''exact derivative of a product.'' For this to work, we need <math>\mu' = \mu p</math> Applying the integrating factor, we have <math>\begin{aligned} \mu(t) y + \mu(t) p(t) y &= \mu(t) g(t) \\ \mu y' + \mu ' y &= \mu g \\ (\mu y)' &=...")
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Integrating factors is a method to solve scalar Linear First Order ODEs.

Consider

We multiply bothsides by integrating factor such that the left hand side to be the exact derivative of a product. For this to work, we need

Applying the integrating factor, we have

From there, simple integration and algebra will solve the equation.