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Commit | Line | Data |
---|---|---|
1 | coefficient(1): a | |
2 | ||
3 | integrate (y'') -> -y': | |
4 | IC: +1 | |
5 | integrate (-y') -> y | |
6 | invert (y) -> -y | |
7 | sin = y | |
8 | ||
9 | integrate (omega') -> -omega | |
10 | a * sin -> a_times_sin | |
11 | omega' = a_times_sin | |
12 | ||
13 | invert (-omega) -> omega | |
14 | multiply (omega, omega) -> omega² | |
15 | multiply (omega², -y) -> -omega²y | |
16 | y'' = -omega²y |