fix cbrt -- rootn(x, 3), not pown(x, 3)

diff --git a/openpower/transcendentals.mdwn b/openpower/transcendentals.mdwn
index 550a4dce5d3f567590297f621f783440c3b50208..4d89ad7b23610263f1253f8bfc97201983e77bfb 100644 (file)
--- a/openpower/transcendentals.mdwn
+++ b/openpower/transcendentals.mdwn
@@ -179,7 +179,7 @@ compound, exp2m1, exp10m1, log2p1, log10p1, pown (integer power) and powr.
 
 Note (1) FSINCOS is macro-op fused (see below).
 
-Note (2) synthesised in IEEE754-2019 as "pown(x, 3)"
+Note (2) synthesised in IEEE754-2019 as "rootn(x, 3)"
 
 Note (3) synthesised in IEEE754-2019 using "1.0 / x"