InverseBetaRegularized[1, a, b] == 1 /; a > 0

Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["InverseBetaRegularized", "[", RowBox[List["1", ",", "a", ",", "b"]], "]"]], "\[Equal]", "1"]], "/;", RowBox[List["a", ">", "0"]]]]]]

<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <mrow> <msubsup> <semantics> <mi> I </mi> <annotation-xml encoding='MathML-Content'> <ci> BetaRegularized </ci> </annotation-xml> </semantics> <mn> 1 </mn> <mrow> <mo> - </mo> <mn> 1 </mn> </mrow> </msubsup> <mo> ( </mo> <mrow> <mi> a </mi> <mo> , </mo> <mi> b </mi> </mrow> <mo> ) </mo> </mrow> <mo> &#10869; </mo> <mn> 1 </mn> </mrow> <mo> /; </mo> <mrow> <mi> a </mi> <mo> &gt; </mo> <mn> 0 </mn> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <ci> Condition </ci> <apply> <eq /> <apply> <ci> InverseBetaRegularized </ci> <cn type='integer'> 1 </cn> <ci> a </ci> <ci> b </ci> </apply> <cn type='integer'> 1 </cn> </apply> <apply> <gt /> <ci> a </ci> <cn type='integer'> 0 </cn> </apply> </apply> </annotation-xml> </semantics> </math>

Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["InverseBetaRegularized", "[", RowBox[List["1", ",", "a_", ",", "b_"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["1", "/;", RowBox[List["a", ">", "0"]]]]]]]]

2001-10-29