Atick; Attach - HP 48gII Advanced User's Reference Manual

• each argument is sent to a distinct result, and
• each possible result is achieved.
The points in this restricted domain of TANH are called the principal values of the inverse relation.
ATANH in its entirety is called the principal branch of the inverse relation, and the points sent by
ATANH to the boundary of the restricted domain of TANH form the branch cuts of ATANH.
The principal branch used by the hp49g+/hp48gII for ATANH was chosen because it is
analytic in the regions where the arguments of the real-valued function are defined. The branch cut
for the complex-valued ATANH function occurs where the corresponding real-valued function
is undefined. The principal branch also preserves most of the important symmetries.
The graph for ATANH can be found from the graph for ATAN (see ATAN) and the
relationship atanh z = –i atan iz.
...Ñ
Access:
Flags: Principal Solution (–1), Numerical Results (–3), Infinite Result Exception (–22)
Input/Output:
See also: ACOSH, ASINH, ISOL, TANH

ATICK

Type: Command
Description: Axes Tick-Mark Command: Sets the axes tick-mark annotation in the reserved variable PPAR.
Given x, ATICK sets the tick-mark annotation to x units on both the x- and the y-axis. For
example, 2 would place tick-marks every 2 units on both axes.
Given #n, ATICK sets the tick-mark annotation to #n pixels on both the x- and the y-axis. For
example, #5 would place tick-marks every 5 pixels on both axes.
Given { x y }, ATICK sets the tick-mark unit annotation for each axis individually. For example,
{ 10 3 } would mark the x-axis at every multiple of 10 units, and the y-axis at every multiple of 3
units.
Given { #n #m } ATICK sets the tick-mark pixel annotation for each axis individually. For
example, {#6 #2 } would mark the x-axis every 6 pixels, and the y-axis every 2 pixels.
...µ
Access:
Input/Output:
See also: AXES, DRAX

ATTACH

Type: Command
Description: Attach Library Command: Attaches the library with the specified number to the current
directory. Each library has a unique number. If a port number is specified, it is ignored.
3-18 Full Command and Function Reference
HYPERBOLIC ATAN
Level 1/Argument 1
z
'symb'
ATICK
Level 1/Argument 1
x
#n
{ x y }
{ #n #m }
(Ñ is the right-shift of the 8key).
Level 1/Item 1
atanh z
'ATANH(symb)'
Level 1/Item 1