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variants of this functions
Log




Mathematica Notation

Traditional Notation









Elementary Functions > Log[z] > Transformations > Products, sums, and powers of the direct function > Products of the direct function





http://functions.wolfram.com/01.04.16.0039.01









  


  








Input Form





Log[Subscript[z, 1]] Log[Subscript[z, 2]] == Log[Subscript[z, 1]^Log[Subscript[z, 2]]] /; Subscript[z, 1] > 0 && Subscript[z, 2] > 0








Standard Form





Cell[BoxData[RowBox[List[RowBox[List[RowBox[List[RowBox[List["Log", "[", SubscriptBox["z", "1"], "]"]], " ", RowBox[List["Log", "[", SubscriptBox["z", "2"], "]"]]]], "\[Equal]", RowBox[List["Log", "[", SubsuperscriptBox["z", "1", RowBox[List["Log", "[", SubscriptBox["z", "2"], "]"]]], "]"]]]], "/;", RowBox[List[RowBox[List[SubscriptBox["z", "1"], ">", "0"]], "\[And]", RowBox[List[SubscriptBox["z", "2"], ">", "0"]]]]]]]]








MathML Form







<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <mrow> <mrow> <mi> log </mi> <mo> &#8289; </mo> <mo> ( </mo> <msub> <mi> z </mi> <mn> 1 </mn> </msub> <mo> ) </mo> </mrow> <mo> &#8290; </mo> <mrow> <mi> log </mi> <mo> &#8289; </mo> <mo> ( </mo> <msub> <mi> z </mi> <mn> 2 </mn> </msub> <mo> ) </mo> </mrow> </mrow> <mo> &#10869; </mo> <mrow> <mi> log </mi> <mo> &#8289; </mo> <mo> ( </mo> <msubsup> <mi> z </mi> <mn> 1 </mn> <mrow> <mi> log </mi> <mo> &#8289; </mo> <mo> ( </mo> <msub> <mi> z </mi> <mn> 2 </mn> </msub> <mo> ) </mo> </mrow> </msubsup> <mo> ) </mo> </mrow> </mrow> <mo> /; </mo> <mrow> <mrow> <msub> <mi> z </mi> <mn> 1 </mn> </msub> <mo> &gt; </mo> <mn> 0 </mn> </mrow> <mo> &#8743; </mo> <mrow> <msub> <mi> z </mi> <mn> 2 </mn> </msub> <mo> &gt; </mo> <mn> 0 </mn> </mrow> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <ci> Condition </ci> <apply> <eq /> <apply> <times /> <apply> <ln /> <apply> <ci> Subscript </ci> <ci> z </ci> <cn type='integer'> 1 </cn> </apply> </apply> <apply> <ln /> <apply> <ci> Subscript </ci> <ci> z </ci> <cn type='integer'> 2 </cn> </apply> </apply> </apply> <apply> <ln /> <apply> <power /> <apply> <ci> Subscript </ci> <ci> z </ci> <cn type='integer'> 1 </cn> </apply> <apply> <ln /> <apply> <ci> Subscript </ci> <ci> z </ci> <cn type='integer'> 2 </cn> </apply> </apply> </apply> </apply> </apply> <apply> <and /> <apply> <gt /> <apply> <ci> Subscript </ci> <ci> z </ci> <cn type='integer'> 1 </cn> </apply> <cn type='integer'> 0 </cn> </apply> <apply> <gt /> <apply> <ci> Subscript </ci> <ci> z </ci> <cn type='integer'> 2 </cn> </apply> <cn type='integer'> 0 </cn> </apply> </apply> </apply> </annotation-xml> </semantics> </math>










Rule Form





Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List[RowBox[List["Log", "[", SubscriptBox["z_", "1"], "]"]], " ", RowBox[List["Log", "[", SubscriptBox["z_", "2"], "]"]]]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List["Log", "[", SubsuperscriptBox["zz", "1", RowBox[List["Log", "[", SubscriptBox["zz", "2"], "]"]]], "]"]], "/;", RowBox[List[RowBox[List[SubscriptBox["zz", "1"], ">", "0"]], "&&", RowBox[List[SubscriptBox["zz", "2"], ">", "0"]]]]]]]]]]


Date Added to functions.wolfram.com (modification date)





2001-10-29