Add under ⍢ and obverse ⍫

Teach inverse() that the inverse of f⍫g is g⍫f


1 files changed, 2 insertions, 0 deletions

diff --git a/apl9.h b/apl9.h
index 7c03918..b15b7e6 100644
--- a/apl9.h
+++ b/apl9.h
@@ -336,6 +336,8 @@ Array *opPower(Datum *, Datum *, Array *, Array *);
 Array *opBind(Datum *, Datum *, Array *, Array *);
 Array *opAtop(Datum *, Datum *, Array *, Array *);
 Array *opOver(Datum *, Datum *, Array *, Array *);
+Array *opUnder(Datum *, Datum *, Array *, Array *);
+Array *opObverse(Datum *, Datum *, Array *, Array *);
 Array *opSelfReference2(Datum *, Datum *, Array *, Array *);
 
 /* Dyadic functions from hybrids.c */