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Student Support Forum: 'Set minimum value in NDSolve' topicStudent Support Forum > General > "Set minimum value in NDSolve"

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Joe Z
10/29/11 10:16am

Is there a way that I can set a minimum value for a function used in NDSolve? I'm using it for a related-rates chemistry problem involving concentrations. Obviously, a negative concentration is impossible, but NDSolve doesn't know or care, and the system behaves as if it is possible. I can select rate constants that prevent values from dropping below zero, but the resultant graphs are consequentially boring.

Attachment: NDSolve.png, URL: ,
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