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math:calculus [2019/12/22 22:07] – phreazer | math:calculus [2019/12/22 22:28] (current) – [Differential equations] phreazer | ||
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$-(1/ | $-(1/ | ||
- | $y = \frac{-1}{(1/ | + | $y = \frac{-1}{(1/ |
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+ | === Types === | ||
+ | |||
+ | $y' + f(x) y = g(x)$ first order, linear, " | ||
+ | |||
+ | Solve inhomogen eqs: | ||
+ | |||
+ | $y'' | ||
+ | |||
+ | $y(x) = y_a(x) + y_p(x)$ | ||
+ | |||
+ | General solution of homogen DE $y_a(x)$ (set to 0, solve with characteristic polynom) | ||
+ | " | ||
+ | |||
+ | v=6jypcZkrvLM | ||
+ | Mit Störfkt, charakteristisches Polynom, lösen. | ||
+ |