HP 49G User Manual page 8

Alphabetical command list
ABCUV
2
(
x + + x
ABCUV(X^2+X+1,X^2+4,13)
{-(X+3),X+4}
ACOS2S
1-8
2
)u ( )
1 + x + 4 = 13
V
π
Command Reference: Part A (1.1)