HP 50g Graphing Calculator - Manual (Page 262)

Page 8-5
ABS EXP and LN
LOG and ANTILOG SQ and square root
SIN, ASIN COS, ACOS
TAN, ATAN INVERSE (1/x)
Real number functions from the MTH menu
Functions of interest from the MTH menu include, from the HYPERBOLIC menu:
SINH, ASINH, COSH, ACOSH, TANH, ATANH, and from the REAL menu: %,
%CH, %T, MIN, MAX, MOD, SIGN, MANT, XPON, IP, FP, RND, TRNC,
FLOOR, CEIL, D R, R D. Some of the functions that take a single argument
are illustrated below applied to lists of real numbers:
SINH, ASINH COSH, ACOSH