History of Values of the elliptic alpha function $\alpha(r)$

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2026-09-17 13:23 bmatschke the link to T296 names it the way T296 now writes itself, K(m_r) current reviewed
2026-09-17 13:08 bmatschke entry comments cite Borwein and Borwein 1987, p. 172, the source MathWorld itself gives for these closed forms, and say which of them are derived: alpha(1) by Legendre's relation, alpha(4) and alpha(8) exactly from alpha(1) and alpha(2) by the order-two relation; the rest agree to 100 digits and are
2026-09-17 11:25 zeta3 shorten elliptic alpha definition after audit
2026-09-17 11:24 zeta3 restore definition and note the limit to 1/pi
2026-09-17 11:11 zeta3 shorten elliptic alpha definition
2026-09-17 11:09 zeta3 with codex-cli elliptic alpha function values for r=1..100
2026-09-17 11:06 zeta3 proposed elliptic alpha function draft

What changed between 2026-09-17 11:06 and 2026-09-17 11:09

from line 92 (313 lines, 310 more than before) @@ -92,3 +92,313 @@
 Display properties:   number-header: $\alpha(r)$-Numbers: []+Numbers:+- params:+    r: '1'+  number: 1/2+  comment: MathWorld gives $\alpha(1)=1/2$ CITE{MathWorldAlpha}.+- params:+    r: '2'+  number: '0.4142135623730950488016887242096980785696718753769480731766797379907324784621070388503875343276415727'+  comment: MathWorld gives $\alpha(2)=\sqrt2-1$ CITE{MathWorldAlpha}.+- params:+    r: '3'+  number: '0.3660254037844386467637231707529361834714026269051903140279034897259665084544000185405730933786242878'+  comment: MathWorld gives $\alpha(3)=(\sqrt3-1)/2$ CITE{MathWorldAlpha}.+- params:+    r: '4'+  number: '0.3431457505076198047932451031612076857213124984922077072932810480370700861515718445984498626894337091'+  comment: MathWorld gives $\alpha(4)=2(\sqrt2-1)^2$ CITE{MathWorldAlpha}.+- params:+    r: '5'+  number: '0.3318826109924715621350282485226791881971871219680396244705466526040784151965915359952943150308830019'+  comment: MathWorld gives $\alpha(5)=(\sqrt5-\sqrt{2\sqrt5-2})/2$ CITE{MathWorldAlpha}.+- params:+    r: '6'+  number: '0.3260450603443938617375886288871065329291939231300498250848668090405401610425190443830740114455600463'+  comment: MathWorld gives $\alpha(6)=5\sqrt6+6\sqrt3-8\sqrt2-11$ CITE{MathWorldAlpha}.+- params:+    r: '7'+  number: '0.3228756555322952952508078768196302128551295915412250901841672296005344116151418138801964432372718053'+  comment: MathWorld gives $\alpha(7)=(\sqrt7-2)/2$ CITE{MathWorldAlpha}.+- params:+    r: '8'+  number: '0.3210856140096569793104537082349151734408849042842140307883951047788365633160745882704125022948886873'+  comment: MathWorld gives $\alpha(8)=2(10+7\sqrt2)(1-\sqrt{\sqrt8-2})^2$ CITE{MathWorldAlpha}.+- params:+    r: '9'+  number: '0.3200403204290140825063509941091936024520117537429458560514522430711079267056925436230421476600335146'+  comment: MathWorld gives $\alpha(9)=(3-3^{3/4}\sqrt2(\sqrt3-1))/2$ CITE{MathWorldAlpha}.+- params:+    r: '10'+  number: '0.3194123114290354348630863477392664394932500827422332385573279886043923450275427285250272626831183295'+  comment: MathWorld gives $\alpha(10)=-103+72\sqrt2-46\sqrt5+33\sqrt{10}$ CITE{MathWorldAlpha}.+- params:+    r: '11'+  number: '0.3190256399635387920056138036820567415393655266970845517505824336540390992225554976159862801358383113'+- params:+    r: '12'+  number: '0.3187824188819994232025763722448354057713686050120050926476868302362578876890595403188375317185196195'+- params:+    r: '13'+  number: '0.3186265225539402003007217274235612771415265720477174234135152991436434747800514997434938771455391602'+- params:+    r: '14'+  number: '0.3185249123608217165579797594738106001443891822388644606041560491233313675438422675783623943529286119'+- params:+    r: '15'+  number: '0.3184576843538135943850458655255616876961516728400325511583382603514810831495870670524364842399456215'+- params:+    r: '16'+  number: 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