Added SUMX2MY2(), SUMX2PY2(), and SUMXMY2().
1999-04-29 Jukka-Pekka Iivonen <iivonen@iki.fi> * src/fn-math.c: Added SUMX2MY2(), SUMX2PY2(), and SUMXMY2(). * src/fn-stat.c: CONFIDENCE() should now work fully.
1999-04-29 Jukka-Pekka Iivonen <iivonen@iki.fi> * src/fn-math.c: Added SUMX2MY2(), SUMX2PY2(), and SUMXMY2(). * src/fn-stat.c: CONFIDENCE() should now work fully.