HP -18C Owner's Manual page 210

Appointment alarms,
see
Alarms
Dill
key, 116
APPT
menu,
119 .
fi1iIiIII
th ru
Ii1i1iIi1
keys, 11 9
Arithmetic, 20-23,
33-45
inside registers, 41
on variables,
41
Arrow keys
for changing current formula,
129
for editing alphabetic information,
24
for moving the list pointer, 86, 98
for rolling the history stack with,
38
for viewing long formulas,
132
B
. . key, 104,
105
B-value, in curve fitting, 102, 104,
105
Backspace key, 20, 24
Em!III
key, 66-67
Balance of loan,
66-69
Balloon payment,
64-65
Base 10 antilogarithm
in
MATH
menu, 42
SOLVE function,
144
Base 10 logarithm
in
MATH
menu, 42
SOLVE
function,
144
Battery
installation and changing,
185-187
annunciator,
185
life, 185
Beeping, for error messages, 31
IGItI
key,
57
Begin mode, 58-59
Blank keys beneath display, 25-30
208 Index
ImIi3I
key, in DELET menu, 135,
136
Brightness of the display, changing,
15
Built-in variables, definition,
30
E1B
key, 26
BUS menu, 47
Business variables, clearing,
53
Buy option, for a lease, 74-76
c
EI'i1DI
key
in CFLO menu, 82
in SOLVE menu, 130
in SUM menu, 96, 100
in
TIME,
menu,
116
CALC
menu
in
CFLO, 87
in SOLVE, 131-132
in SUM menu, 100
in TIME, 124-126
CALCULAT I
NG, , , message, 30
Calculating values for variables,
30
Calculator line
arithmetic in, 33-45
clearing, 22
definition, 16, 17, 20
displaying alphabetic information,
33
editing,
22
Calculator technical support, 159
Calendar
actual,
124
range of, 11 5
setting,
116-118
360-day,
124
365-day,
124
Capitalized value of a lease,
74-76
Cash flow calculations, 81-93