libzahl

commit 9049bbbf46dff93878a27179f811e2684e3add6d
parent 091d52b9f5ff682e67aa55fbe4145aeb5468fd0a
Author: Mattias Andrée <maandree@kth.se>
Date:   Sun,  1 May 2016 01:35:38 +0200

refsheet: zgcd: a < 0 also if b < 0 and c == 0 or c < 0 and b == 0, so just if, not iff

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

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

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/refsheet.tex b/doc/refsheet.tex
@@ -137,7 +137,7 @@ Unless specified otherwise, all times are of type {\tt z\_t}.
 \entry    {zodd(a)}           {Is $a$ odd?}            {returns {\tt int} 1 (true) or 0 (false)}
 \entry    {zodd\_nonzero(a)}  {Is $a$ odd?}            {ditto, assumes $a \neq 0$}
 \entry    {zzero(a)}          {Is $a$ zero?}           {returns {\tt int} 1 (true) or 0 (false)}
-\entry    {zgcd(a, b, c)}     {$a \gets \gcd(c, b)$}   {$a < 0$ iff $b < 0 \wedge c < 0$}
+\entry    {zgcd(a, b, c)}     {$a \gets \gcd(c, b)$}   {$a < 0$ if $b < 0 \wedge c < 0$}
 \entryFive{zptest(a, b, c)}   {Is $b$ a prime?}        {{\tt c} runs of Miller--Rabin, returns}
                                                        {{\tt enum zprimality} {\tt NONPRIME} (0)}
                                                        {(and stores the witness in {\tt a} unless}