WorkingPrecision

WorkingPrecision
is an option for various numerical operations which specifies how many digits of precision should be maintained in internal computations.

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WorkingPrecision is an option for such functions as NIntegrate and FindRoot.

Setting WorkingPrecision->n causes all internal computations to be done to at most n-digit precision.

Setting WorkingPrecision->MachinePrecision causes all internal computations to be done with machine numbers.

Even if internal computations are done to n-digit precision, the final results you get may have much lower precision.

EXAMPLES

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Basic Examples (2)

Find a root using 60-digit precision arithmetic:

In[1]:=

Out[1]=

Solve a differential equation using 24-digit precision arithmetic:

Scope (4)

SEE ALSO

PrecisionGoal AccuracyGoal Precision Accuracy N Tolerance

TUTORIALS

Numerical Integration

MORE ABOUT

Differential Equations

Precision & Accuracy Control

Time Measurement & Optimization

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