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Custom Formulas/Zeta(4) - Direct.cfg

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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:    November 10, 2018
+//
+//    Value: 1.08232323371113819151600369654116790277475095191872...
+//
+//    Zeta(4) = Pi^4 / 90
+//
+//    This uses Ramanujan's formula for Pi so that it's independent
+//    from the other implementation.
+//
+
+{
+    NameShort : "Zeta(4)"
+    NameLong : "Zeta(4)"
+    AlgorithmShort : "Direct"
+    AlgorithmLong : "Direct Formula"
+    Formula : {
+        Divide : [
+            {Power : [
+                {Pi : {Algorithm : "ramanujan"}}
+                4
+            ]}
+            90
+        ]
+    }
+}