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/01.24.06.0001.02

 Input Form

 Sech[z] \[Proportional] 1 - z^2/2 + (5 z^4)/24 - (61 z^6)/720 + \[Ellipsis] /; (z -> 0)

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["Sech", "[", "z", "]"]], "\[Proportional]", RowBox[List["1", "-", FractionBox[SuperscriptBox["z", "2"], "2"], "+", FractionBox[RowBox[List["5", " ", SuperscriptBox["z", "4"]]], "24"], "-", FractionBox[RowBox[List["61", " ", SuperscriptBox["z", "6"]]], "720"], "+", "\[Ellipsis]"]]]], "/;", " ", RowBox[List["(", RowBox[List["z", "\[Rule]", "0"]], ")"]]]]]]

 MathML Form

 sech ( z ) 1 - z 2 2 + 5 z 4 24 - 61 z 6 720 + /; /; ( z "\[Rule]" 0 ) sech ( z ) 1 - z 2 2 + 5 z 4 24 - 61 z 6 720 + /; /; ( z "\[Rule]" 0 ) [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Sech", "[", "z_", "]"]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List["1", "-", FractionBox[SuperscriptBox["z", "2"], "2"], "+", FractionBox[RowBox[List["5", " ", SuperscriptBox["z", "4"]]], "24"], "-", FractionBox[RowBox[List["61", " ", SuperscriptBox["z", "6"]]], "720"], "+", "\[Ellipsis]"]], "/;", RowBox[List["(", RowBox[List["z", "\[Rule]", "0"]], ")"]]]]]]]]

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

 2001-10-29