digits = posint

A positive integer; the environment variable Digits will be set to this integer during the execution of this procedure. By default, Digits is 10.

The RelativeError command computes the relative error of xa with respect to the exact value xe.

$\mathrm{with}\left(\mathrm{Student}\left[\mathrm{NumericalAnalysis}\right]\right)\:$

$\mathrm{appr}≔2.89\times {10}^8$

$\mathrm{appr}≔2.89\times {10}^8$

$\mathrm{exac}≔2.98\times {10}^8$

$\mathrm{exac}≔2.98\times {10}^8$

$\mathrm{RelativeError}\left(\mathrm{exac}\,\mathrm{appr}\,\mathrm{digits}=5\right)$

$0.030201$