List Functions; Loop Functions - HP 39g+ User Manual

TANH
ALOG
EXP
EXPM1
LNP1

List functions

Loop functions

ITERATE
Using mathematical functions
Hyperbolic tangent.
TANH(value)
Antilogarithm (exponential). This is more accurate than
10^x due to limitations of the power function.
ALOG(value)
Natural exponential. This is more accurate than
to limitations of the power function.
EXP(value)
Exponent minus 1 :
EXP when x is close to zero.
EXPM1(value)
Natural log plus 1 : ln(x+1). This is more accurate than
the natural logarithm function when x is close to zero.
LNP1(value)
These functions work on list data. See "List functions" on
page 14-6.
The loop functions display a result after evaluating an
expression a given number of times.
Repeatedly for #times evaluates an expression in terms of
variable. The value for variable is updated each time,
starting with initialvalue.
ITERATE(expression, variable, initialvalue,
#times)
Example
2
,X,2,3) returns 256
ITERATE(X
x
e – 1
. This is more accurate than
x
e
due
11-9