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FORMAT OF USER INSTRUCTIONS
The
completed User
Instruction Form-which
accompanies
each
program-
is
your
guide to ope rating the prog rams
in
this Pac.
The
form
is
composed of
five
labeled
column
s.
Reading
from left
to
right
, the
first column
,
labeled
STEP,
gives
the
instruction
step number.
The
INSTRUCTIONS column
gives
instructions
and
comments
concerning the
operations
to be
performed.
The
INPUT
co
lumn
spec ifies
the
input
data, the
units
o
f
data
if
applicable,
or
the appropriate alpha response to a
prompted
question.
Data
Input
keys
consist
ofO
to
9
and
the
decimal point
(the numeric
keys),
I
EEX
I
(e
nter exponent)
,
and
ICHSI
(c hange
sign)
.
The
FUNCTION column
spec ifies the keys to be
pressed
afte
r
keying
in
the
corresponding
input
data.
Whenever
a state
ment in
the
INPUT
or FUNCTION
column
is
printed in gold
,
the
I
ALPHA
I
key must
be
pressed
before
the
statement can
be
keyed
in.
After
the
statement
is
keyed in
,
press
I
ALPHA
I
again
to
return
the
calculator
to
its
normal
operating
mode,
or
to
begin program
execution.
For exampl
e,
I
xrn
I
1
~
means
press the
fo llowing keys:
I
XEO
11
ALPHA
I
CURVE
I
ALPHA
I
.
The
DISPLAY
co
lumn
spec ifies pro
mpts
and
intermediate
and final
answers
and their
units, where
applicable
.
Above the
DISPLAY column
is
a
box,
SIZE
XXX
,
which
specifies the
mini-
mum
numbe
r
of
reg
isters
necessary
to exec ute the prog
ram
.
Refer
to pages
73
and
117
in
the Owner's
Handbook
fo
r
a complete
description of how
to size
calculator memory.
The
foll
owing
illu
strates
the
User
In
struction Form for Resection.
SIZE:
016
STEP
INSTRUCTIONS
INPUT
FUNCTION
DISPLAY
1
Begin Resection
program
~
COORDS?
2
If
coordinates of the
three
points
are known
, answer:
Y
y
~
N1
=?
and input coordinates of
the
N1
~
E1
=?
three points.
Then
go
to
step 4.
E1
~
N2
=?
N2
~
E2
=?
E2
~
N3
=?
N3
~
E3
=?
E3
~
LA=?
6
STEP
INSTRUCTIONS
INPUT
FUNCTION
DISPLAY
OR
3
If
coordinates of
the
three
points
are
not
known
,
answer:
N
and
input distance between
N
~
DI ST1
?
points
1 and 2,
distance between
L1
~
DIST2
?
points
2 and 3 and angle C.
L2
~
&.C=?
&.C(D.MS)
~
M =?
4
Input
angle
A
and
M(D
.MS)
~
&.B=?
angle B
LB(D.MS)
~
&.0
=
~ t
&.E
=
5
If
coordinates of
the three
~ t
NP
=
points
were
input
calculate
~ t
EP=
coordinates of
point P.
6
In
either case, distances
1
~ t
DIST1
=
through 5
may be
calculated
.
~ t
DIST2=
~ t
DIST3=
~ t
DIST4
=
~ t
DIST5
=
7
For
a
new
case go to step
1.
t
This
~
not necessary when
ca
lculator
is
operated
with
printer.
The
user should first
allocate
(at least) 16
data
storage reg iste rs
(SIZE:
016)
fo
r
use during
program
exec
ution.
To do this the keys
I
XEO/
I
ALPHA
I
SIZE
I
ALPHA
I
016
are
pressed
.
Program execution
is
begun by
press ing
I
XEO
11 ALPHA I
RESECT
I ALPHA I
.
The
calcul ator display
shows
COORDS?
,
asking whether
or not
the
coordinates
of
the 3
points are
known
.
If
the coordinates are
known the user
replies
by
pressing
Y
IR/SI.
The
calculator then
prompts
for
coordinate
input
, beginning
with
the
display
N1
=
?.
The
user then
keys
in
the northing
of
the
first
point,
presses
I
R/s
I,
sees the
display
E1
=
?
,
and
inputs the easting
of
the
first point
, etc.
unt i
I
all
coordinates have bee
n input.
The
displ ay then
requests
input for
I:....
A and
b..
B
(which
are
keyed in in D .MS
mode).
Following these
inputs the
ca
lcul ator
calculates
and displ
ays the values
of
angles
D and
E,
the
coo rd
in
ates of the
unknown point
,
P,
and
the distances
I through
5.
When
the
calc
ul ator
is
not
attached to
a
printer the user
presses
IR/SI
after each
output
to
go
on
to the
next.
If
a
printer
is
attached and turned on
the results are
printed
automatically
,
with
no
need
to press the
IR/SI
key.
If
the coordinates
of
the three points are
not known
, the
user
replies
to
COORDS?
by
pressing
N
I
R/s
I
and then foll
ows the
pro
mpting
DIST 1
=
?
by
inputting the
di
stance
from point
I
to
po
int
2.
Followin
g
further
pro
mpts
the
ditance
from point
2
to
point
3,
and
the angles C,
A and B
are
input.
Outputs
are
obtained in
the
manner described
above.
7
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