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NDSolve::ivcon NDSolveValue::ivcon ParametricNDSolve::ivcon ParametricNDSolveValue::ivcon NDSolve`Reinitialize::ivcon

NDSolve::ivcon NDSolveValue::ivcon ParametricNDSolve::ivcon ParametricNDSolveValue::ivcon NDSolve`Reinitialize::ivcon

Details

  • This message can be generated when the initial conditions are inconsistent with each other or when there are more initial conditions than necessary to specify a solution.
  • Off[message] switches off the message; On[message] switches it on. For example: Off[NDSolve::ivcon].

Examples

Basic Examples  (1)

A warning message is generated because some of the initial conditions are unnecessary:

Wolfram Language code: NDSolve[{x''[t] + y[t] == 0, y[t] == x[t], x[0] == 1, x'[0] == 0, x''[0] == 0, y[0] == 0, y'[0] == 0}, {x, y}, {t, 0, 1}]

Get rid of the initial condition on to resolve the first message:

Wolfram Language code: NDSolve[{x''[t] + y[t] == 0, y[t] == x[t], x[0] == 1, x'[0] == 0, y[0] == 0, y'[0] == 0}, {x, y}, {t, 0, 1}]