Assertion: estimate's value | /r/HasProperty | known in this case
Facets:
Source sentences:
text: In this case the exact value is known and so for comparison purposes, \[\sum\limits_{n = 1}^\infty {\frac{{{{\left( { - 1} \right)}^n}}}{{{n^2}}}} = - \frac{{{\pi ^2}}}{{12}} = - 0.8224670336\]
text: In this case the exact value is known and so the actual error is, \[\left| {{R_{15}}}
text: In this case the exact value is known.