Improve help files

Minor improvement of various help files.  Made format of help
files more consistent.

help/appr

@@ -96,7 +96,7 @@ PROPERTIES
 
 	If y is nonzero, appr(x,y,8)/y = an odd integer n only if x = n * y.
 
-EXAMPLES
+EXAMPLE
     ; print appr(-5.44,0.1,0), appr(5.44,0.1,0), appr(5.7,1,0), appr(-5.7,1,0)
     -5.5 5.4 5 -6
 
@@ -119,26 +119,26 @@ EXAMPLES
     -5.5 5.5 5 -5
 
     ; print appr(-.44,0.1,11), appr(.44,0.1,11), appr(5.7,1,11), appr(-5.7,1,11)
-    -.4 .5 5 -6
+    -0.4 0.5 5 -6
 
     ; print appr(-.44,-.1,11),appr(.44,-.1,11),appr(5.7,-1,11),appr(-5.7,-1,11)
-    -.5 .4 6 -5
+    -0.5 0.4 6 -5
 
     ; print appr(-.44,0.1,12), appr(.44,0.1,12), appr(5.7,1,12), appr(-5.7,1,12)
-    -.4 .5 5 -6
+    -0.4 0.5 5 -6
 
     ; print appr(-.44,-.1,12),appr(.44,-.1,12),appr(5.7,-1,12),appr(-5.7,-1,12)
-    -.5 .4 6 -5
+    -0.5 0.4 6 -5
 
     ; print appr(-.44,0.1,15), appr(.44,0.1,15), appr(5.7,1,15), appr(-5.7,1,15)
-    -.4 .5 5 -6
+    -0.4 0.5 5 -6
 
     ; print appr(-.44,-.1,15),appr(.44,-.1,15),appr(5.7,-1,15),appr(-5.7,-1,15)
-    -.4 .5 5 -6
+    -0.4 0.5 5 -6
 
     ; x = sqrt(7-3i, 1e-20)
     ; print appr(x,1e-5,0), appr(x,1e-5,1), appr(x,1e-5,2), appr(x,1e-6,3)
-    2.70331-.55488i 2.70332-.55487i 2.70331-.55487i 2.70332-.55488i
+    2.70331-0.55488i 2.70332-0.55487i 2.70331-0.55487i 2.70332-0.55488i
 
 LIMITS
     none
@@ -151,7 +151,7 @@ LINK LIBRARY
 SEE ALSO
     round, bround, cfappr, cfsim
 
-## Copyright (C) 1999  Landon Curt Noll
+## Copyright (C) 1999,2021  Landon Curt Noll
 ##
 ## Calc is open software; you can redistribute it and/or modify it under
 ## the terms of the version 2.1 of the GNU Lesser General Public License