Kaprekars Constant - Revision history

Joseph: /* z^3 Solution */

2024-09-12T16:17:39Z

z^3 Solution

2024-09-05T23:50:41Z

Notes

2024-09-05T23:49:15Z

z^3 Solution

2024-09-05T01:41:04Z

z^3 Solution

2024-09-05T01:37:40Z

z^3 Solution

2024-09-05T01:36:13Z

z^3 Solution

2024-09-04T21:40:04Z

z^3 Solution

2024-09-02T03:33:59Z

2024-09-02T03:33:07Z

Kaprekar's constant

2024-09-02T03:28:57Z

z^3 Solution

@@ Line 17: / Line 17: @@
 function kc(x)
+{
-	k=x.⁋.⪪.⋰;
+	k=x.⁋.⪡.⋰;
 	kp:=k.⋱.⚯*1 -k.⋰.⚯;
 	_y=k;
@@ Line 35: / Line 35: @@
 				rs.push(t)
+			}
-			_y=t.⁋.⪪;
+			_y=t.⁋.⪡;
+		}
 	);
@@ Line 41: / Line 41: @@
 	return([x,r,rs])
+}
 </pre>

← Older revision		Revision as of 23:50, 5 September 2024
Line 273:		Line 273:

	In the code above, the throw("EXIT") is used to go break the loop as the loop has reached 6174 potentially.		In the code above, the throw("EXIT") is used to go break the loop as the loop has reached 6174 potentially.
		+
		+	Also note the elegant way to handle exceptions. For example, tryx or ☝; is a quick way to wrap the previous block or statement with a try{}catch(){} statement.

@@ Line 21: / Line 21: @@
 	_y=k;
 	var r=-1, rt=-1,rs=[];
-	try
+	(1..8)@(
+		function(i)
-		(1..8)@(
-			function(i)
+			var t=kp(_y)
+			{
-				var t=kp(_y)
+				r=i;rt=t;rs.push(t);
+				throw("EXIT")
+			}
-		);
+			else
-−
+			{
-	catch(err)
+				rs.push(t)
-−
+			}
-	//	⊫(err,"ERROR")
+			_y=t.⁋.⪪;
-−
+		}
-	//⊫([x,r,rt,rs])
+	);
-	//return([x,r,_y,rs])
+	☝;
 	return([x,r,rs])
+}
 </pre>

← Older revision		Revision as of 01:41, 5 September 2024
Line 269:		Line 269:

	\|}		\|}
		+
		+	==Notes==
		+
		+	In Loops (such as 1..7),
		+
		+	throw("EXIT")
		+
		+	or
		+
		+	throw("BREAK")
		+
		+	will break the FOR loop.
		+
		+	throw("CONTINUE")
		+
		+	will continue the FOR loop call.
		+
		+	In the code above, the throw("EXIT") is used to go break the loop as the loop has reached 6174 potentially.

@@ Line 17: / Line 17: @@
 function kc(x)
+{
-	k=((x⁋)#).sort();
+	k=x.⁋.⪪.⋰;
-	kp:=((k⋱)⚯*1 -(k⋰)⚯);
+	kp:=k.⋱.⚯*1 -k.⋰.⚯;
 	_y=k;
-	var r=-1;
+	var r=-1, rt=-1,rs=[];
 	try
+	{
@@ Line 31: / Line 29: @@
 				if(t==6174 && r==-1)
+				{
-					r=i;
+					r=i;rt=t;rs.push(t);
 					throw("EXIT")
+				}
@@ Line 40: / Line 36: @@
 					rs.push(t)
+				}
-				_y=((t⁋)#);
+				_y=t.⁋.⪪;
+			}
 		);

@@ Line 2: / Line 2: @@
 =Kaprekar's constant=
-The number 6174 is known as Kaprekar's constant[[https://en.wikipedia.org/wiki/6174]] after the Indian mathematician D. R. Kaprekar. This number is renowned for the following rule:
+The number 6174 is known as Kaprekar's constant[[https://en.wikipedia.org/wiki/6174 | Kaprekar's Constant 6174]] after the Indian mathematician D. R. Kaprekar. This number is renowned for the following rule:
 Take any four-digit number, using at least two different digits (leading zeros are allowed).

← Older revision		Revision as of 03:28, 2 September 2024
Line 54:		Line 54:
	</pre>		</pre>

		+	Answer:

	{\| style="" id="TABLE1" class="null wikitable" donotcaption="true" \|		{\| style="" id="TABLE1" class="null wikitable" donotcaption="true" \|