Release calc version 2.11.0t8.5

help/hash

@@ -1,5 +1,5 @@
 NAME
-    hash - hash value
+    hash - FNV-1 hash value
 
 SYNOPSIS
     hash(x_1 [, x_2, x_3, ...])
@@ -12,23 +12,32 @@ TYPES
 DESCRIPTION
     Returns a hash value for one or more values of arbitrary types.
 
-    This function implements the Fowler/Noll/Vo hash-1 (FNV-1 hash).
-    The basis of the hash algorithm was taken from an idea sent
-    by Email to the IEEE POSIX P1003.2 mailing list from Phong Vo
-    (kpv@research.att.com) and Glenn Fowler (gsf@research.att.com).
-    Landon Curt Noll (http://reality.sgi.com/chongo) later improved on
-    their algorithm to come up with Fowler/Noll/Vo hash.
+    The basis of this hash algorithm was taken from an idea sent
+    as reviewer comments to the IEEE POSIX P1003.2 committee by:
 
-    See:
+         Phong Vo (http://www.research.att.com/info/kpv)
+         Glenn Fowler (http://www.research.att.com/~gsf/)
 
-	http://reality.sgi.com/chongo/tech/comp/fnv/index.html
+    In a subsequent ballot round:
 
-    for more information in this hash.
+         Landon Curt Noll (http://reality.sgi.com/chongo)
+
+    improved on their algorithm.  Some people tried this hash
+    and found that it worked rather well.  In an EMail message
+    to Landon, they named it ``Fowler/Noll/Vo'' or the FNV hash.
+
+    FNV hashes are architected to be fast while maintaining a low
+    collision rate. The FNV speed allows one to quickly hash lots
+    of data while maintaining a reasonable collision rate.  See:
+
+         http://reality.sgi.com/chongo/tech/comp/fnv/
+
+    for more details as well as other forms of the FNV hash.
 
 EXAMPLE
     > a = isqrt(2e1000); s = "xyz";
     > hash(a,s)
-	    1916476840
+	    2378490456
 
 LIMITS
     The number of arguments is not to exceed 100.
@@ -37,3 +46,4 @@ LIBRARY
     none
 
 SEE ALSO
+    sha, sha1, md5