| Author |
Comment/Response |
Ed
|
 02/21/05 7:22pm
I get the following error message when using NDSolve:
NDSolve::dvnoarg: The function t appears with no arguments.
I am attempting to solve this differential equation:
\!\(NDSolve[{r\ \((\(\(12.055116029577436`\)\(\[InvisibleSpace]\)\) - \
0.004991840209429083`\ t[r] + 7.355780192195863`*^-7\ t[r]\^2 -
4.745507783827941`*^-11\ t[r]\^3 + 1.4176645809354309`*^-15\ \
t[r]\^4 - 1.5908389239367406`*^-20\ t[r]\^5)\)\ ?\_r Dt[t, r] + \
\((\(\(12.055116029577436`\)\(\[InvisibleSpace]\)\) - 0.004991840209429083`\ \
t + 7.355780192195863`*^-7\ t[r]\^2 - 4.745507783827941`*^-11\ t[r]\^3 +
1.4176645809354309`*^-15\ t[r]\^4 - 1.5908389239367406`*^-20\ \
t[r]\^5)\)\
Dt[t, r] == \(-2200\)\ r\ \((\(\(7897.9891397366055`\)\(\
\[InvisibleSpace]\)\) - 3.4314940084387255`\ t[r] + 0.00046455776424968897`\
t[r]\^2 -
2.0274932990451966`*^-8\ t[r]\^3 + 2.9610596390547743`*^-13\ \
t[r]\^4)\), t[0] == 8100}, t, {r, 0.0001, 0.005}]\)
I would really appreciate any suggestions. Thanks.
Attachment: NDSolve.tiff, URL: , |
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