Initial data commit

Task/Arithmetic-Complex/D/arithmetic-complex.d

@@ -0,0 +1,11 @@
+import std.stdio, std.complex;
+
+void main() {
+    auto x = complex(1, 1); // complex of doubles on default
+    auto y = complex(3.14159, 1.2);
+
+    writeln(x + y);   // addition
+    writeln(x * y);   // multiplication
+    writeln(1.0 / x); // inversion
+    writeln(-x);      // negation
+}