libzahl

commit 89898de3bfa38d39494555a3e109253489a0e0b6
parent a13f9f4c6ab80436a9edeca30eccbe1b4de735fc
Author: Mattias Andrée <maandree@kth.se>
Date:   Mon, 25 Jul 2016 16:56:20 +0200

Fix a small error in the solution for Powers of the golden ratio

Signed-off-by: Mattias Andrée <maandree@kth.se>

Diffstat:
M
doc/exercises.tex
 | 
2
+-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/exercises.tex b/doc/exercises.tex
@@ -508,7 +508,7 @@ but for efficiency and briefness, we will use
 void golden_pow(z_t r, z_t p)
 \{
     if (zsignum(p) <= 0)
-        zsetu(r, zzero(p));
+        zsetu(r, zcmpi(p, -1) >= 0);
     else
         lucas(r, p);
 \}