- #1
cue928
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I am working on a problem requiring variation of parameters. When I calculated the wronskian, I got an answer, which differed from the book only by a "-" (mine was -, the book's was +). So I switched my functions for y1 and y2 and got the answer the book had. Is there a standard for which should be which or does it work itself out either way through the course of the problem, once you start integrating?
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