project-euler: Rewrap, update links, add copyrights, tests

[factor.git] / extra / project-euler / 188 / 188.factor

diff --git a/extra/project-euler/188/188.factor b/extra/project-euler/188/188.factor
index 98eadeee13e3bbf860c60ede4fab344ed547f7c1..947a0a7249a2a507a7c2273e1dc0e3acce1b1051 100644 (file)
--- a/extra/project-euler/188/188.factor
+++ b/extra/project-euler/188/188.factor
@@ -3,13 +3,14 @@
 USING: kernel math math.functions project-euler.common ;
 IN: project-euler.188
 
-! https://projecteuler.net/index.php?section=problems&id=188
+! https://projecteuler.net/problem=188
 
 ! DESCRIPTION
 ! -----------
 
-! The hyperexponentiation or tetration of a number a by a positive integer b,
-! denoted by a↑↑b or ^(b)a, is recursively defined by:
+! The hyperexponentiation or tetration of a number a by a
+! positive integer b, denoted by a↑↑b or ^(b)a, is recursively
+! defined by:
 
 ! a↑↑1 = a,
 ! a↑↑(k+1) = a^(a↑↑k).