Data commit

Task/Gamma-function/Seed7/gamma-function.seed7

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+$ include "seed7_05.s7i";
+  include "float.s7i";
+
+const func float: gamma (in float: X) is func
+  result
+    var float: result is 0.0;
+  local
+    const array float: A is [] (
+         1.00000000000000000000,  0.57721566490153286061,
+        -0.65587807152025388108, -0.04200263503409523553,
+         0.16653861138229148950, -0.04219773455554433675,
+        -0.00962197152787697356,  0.00721894324666309954,
+        -0.00116516759185906511, -0.00021524167411495097,
+         0.00012805028238811619, -0.00002013485478078824,
+        -0.00000125049348214267,  0.00000113302723198170,
+        -0.00000020563384169776,  0.00000000611609510448,
+         0.00000000500200764447, -0.00000000118127457049,
+         0.00000000010434267117,  0.00000000000778226344,
+        -0.00000000000369680562,  0.00000000000051003703,
+        -0.00000000000002058326, -0.00000000000000534812,
+         0.00000000000000122678, -0.00000000000000011813,
+         0.00000000000000000119,  0.00000000000000000141,
+        -0.00000000000000000023,  0.00000000000000000002);
+    var float: Y is 0.0;
+    var float: Sum is A[maxIdx(A)];
+    var integer: N is 0;
+  begin
+    Y := X - 1.0;
+    for N range pred(maxIdx(A)) downto minIdx(A) do
+      Sum := Sum * Y + A[N];
+    end for;
+    result := 1.0 / Sum;
+  end func;
+
+const proc: main is func
+  local
+    var integer: I is 0;
+  begin
+    for I range 1 to 10 do
+      writeln((gamma(flt(I) / 3.0)) digits 15);
+    end for;
+  end func;