Add files via upload

2026-05-20 14:37:38 +00:00 · 2021-11-11 21:34:46 -08:00
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+//  y-cruncher Custom Formula File
+//
+//  This can be loaded directly from the Custom Compute menu or
+//  entered from the command line as "custom:filename".
+//
+//      y-cruncher custom custom:"constant - algorithm"
+//
+//
+//    Author:  Alexander J. Yee
+//    Date:    September 29, 2018
+//
+//    Value: 3.14159265358979323846264338327950288419716939937510...
+//
+//    http://www.numberworld.org/y-cruncher/internals/binary-splitting-library.html#pi_ramanujan
+//
+
+{
+    NameShort : "Pi"
+    NameLong : "Pi"
+    AlgorithmShort : "Ramanujan"
+    AlgorithmLong : "Ramanujan (1910)"
+    Formula : {
+        Multiply : [
+            {
+                SeriesHypergeometric : {
+                    Power : -1
+                    CoefficientP : 1
+                    CoefficientQ : 1103
+                    CoefficientD : 9801
+                    PolynomialP : [-3309 -54904 527636 -1231424 844480]
+                    PolynomialQ : [0 0 0 3073907232]
+                    PolynomialR : [-3 22 -48 32]
+                }
+            }
+            {Invsqrt : 8}
+        ]
+    }
+}