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PrecisionGoal

Status: Experimental

present and registered, but lightly documented and not yet covered by dedicated tests.

Description

PrecisionGoal

is an option for numerical operations (NIntegrate, NDSolve, NLimit, NSum, and the others accepting AccuracyGoal) specifying how many digits of RELATIVE precision to seek.

Notes With PrecisionGoal -\> p and AccuracyGoal -\> a, Mathilda seeks a result whose numerical error in a value of size x is below 10^-a + |x| 10^-p; p is the relative term of that combined tolerance and effectively bounds the relative error. PrecisionGoal -\> Automatic (the default) seeks near-full working precision (two digits below WorkingPrecision). PrecisionGoal -\> Infinity disables the relative criterion, leaving AccuracyGoal to govern termination. When the goal cannot be met the operation issues a Head::accgl message and returns its best approximation. Set WorkingPrecision at least as large as PrecisionGoal.

Examples

No verified examples yet for this function.

Implementation notes

Attributes: none registered.

References