HP 39g+ - Manual (Page 146)

10-10 Using mathematical functions
ALOG Antilogarithm (exponential). This is more accurate than
10^x due to limitations of the power function.
ALOG (value)
EXP Natural exponential. This is more accurate than due to
limitations of the power function.
EXP (value)
EXPM1 Exponent minus 1 : e
x
–1. This is more accurate than EXP
when x is close to zero.
EXPM1 (value)
LNP1 Natural log plus 1 : ln(x+1). This is more accurate than the
natural logarithm function when x is close to zero.
LNP1 (value)
List functions
These functions work on list data. See “List functions” on
page 13-7.
e
x