html, body, form { margin: 0; padding: 0; width: 100%; } #calculate { position: relative; width: 177px; height: 110px; background: transparent url(/images/alphabox/embed_functions_inside.gif) no-repeat scroll 0 0; } #i { position: relative; left: 18px; top: 44px; width: 133px; border: 0 none; outline: 0; font-size: 11px; } #eq { width: 9px; height: 10px; background: transparent; position: absolute; top: 47px; right: 18px; cursor: pointer; }

 Sech

 http://functions.wolfram.com/01.24.16.0033.01

 Input Form

 Sech[z/2] == Sqrt[2]/Sqrt[Cosh[z] + 1] /; Abs[Im[z]] < Pi

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["Sech", "[", FractionBox["z", "2"], "]"]], "\[Equal]", FractionBox[RowBox[List[" ", SqrtBox["2"]]], SqrtBox[RowBox[List[RowBox[List["Cosh", "[", "z", "]"]], "+", "1"]]]]]], "/;", RowBox[List[RowBox[List["Abs", "[", RowBox[List["Im", "[", "z", "]"]], "]"]], "<", "\[Pi]"]]]]]]

 MathML Form

 sech ( z 2 ) 2 cosh ( z ) + 1 /; "\[LeftBracketingBar]" Im ( z ) "\[RightBracketingBar]" < π Condition z 2 -1 2 1 2 z 1 1 2 -1 z [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Sech", "[", FractionBox["z_", "2"], "]"]], "]"]], "\[RuleDelayed]", RowBox[List[FractionBox[SqrtBox["2"], SqrtBox[RowBox[List[RowBox[List["Cosh", "[", "z", "]"]], "+", "1"]]]], "/;", RowBox[List[RowBox[List["Abs", "[", RowBox[List["Im", "[", "z", "]"]], "]"]], "<", "\[Pi]"]]]]]]]]

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

 2001-10-29