evidanary/sq_root.rb

Created June 16, 2017 21:54

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evidanary created this gist Jun 16, 2017.

sq_root.rb

-Original file line number
+Diff line change
@@ -0,0 +1,7 @@
+    # Square root of a number
+    # Use newton rhapson's method
+    def sqrt(x)
+      r = x
+      r = (r + x/r) / 2 while r*r > x
+      r
+    end