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NIntegrate::grpar

Details

  • This message is generated when NIntegrate's method "GeneralRule" is given an incorrect value for its sub-option "RuleData".
  • Off[message] switches off the message; On[message] switches it on. For example: Off[NIntegrate::grpar].

Examples

Basic Examples  (1)

This example shows specification of Simpson's rule abscissas and weights without error weights:

Wolfram Language code: NIntegrate[1 / Sqrt[x], {x, 0, 1}, Method -> {"GeneralRule", "RuleData" -> {{0, 1 / 2, 1}, {1 / 6, 2 / 3, 1 / 6}, {}}}]

This example shows specification of Simpson's rule abscissas and weights, and error weights that utilize the weights of the trapezoidal rule:

Wolfram Language code: NIntegrate[1 / Sqrt[x], {x, 0, 1}, Method -> {"GeneralRule", "RuleData" -> {{0, 1 / 2, 1}, {1 / 6, 2 / 3, 1 / 6}, {1 / 6, 2 / 3, 1 / 6} - {1 / 4, 1 / 2, 1 / 4}}}]