HP -22S Owner's Manual page 192

Registers, statistical, 60
Regulatory information, 153
Relative minimum, 164-165
Repairing the calculator.
See
Service
Replacing batteries, 143-144
Representation of numbers, 56
Resetting the calculator, 146
{RN}, 52
RN function
in equations, 81
in keyboard calculations, 52
Root
defmition of accuracy of, 158
how found by'
SOLVE
I, 155-157
'SOLVE
I's ability to find, 157-158
Root mean square, 108
Roots of a quadratic, 93-94
Round function
in equations, 81
in keyboard calculations, 52
Round-off error in,
SOLVE
I, 170
s
{s}, 63
Sample standard deviation, 63, 64
Saving account, 138
{SC},24
Scientific notion, 23-25
Scrolling
binary numbers, 54
equations, 74
SELECT EQN, 175
Self-test, 148-149
Service
agreements, 153
determining if necessary, 147,
148-149
obtaining, 151-153
Shift annunciator, 16
Shift key, 16
192 Index
Shipping for service, 152-153
.'sHowl,26
Sign bit, 56
~,45
SIN function
in equations, 81
in keyboard calculations, 45
Sines, law of, 117-118
SINH function
in equations, 81
in keyboard calculations, 51
Slope of line (m)
equation for, 172
in equations, 82
in keyboard calculations, 63
Solutions by I
SOLVE
I, interpreting,
158-163
'SOLVE
I
halting, 89
how it works, 87-90, 155-157
inability to find a solution, 90
initial guesses, 87-89, 169
interpreting results, 158-163
introduction to, 30-31
math error during, 87, 166-167
obtaining more information about
results, 90
requirements to find a root,
157-158
round-off error, 170
technical information about,
155-170
unable to find a root, 163
underflow, 170
using, 70-90
SOLVING,78, 175
Solving equations.
See
'SOLVE
I
Sphere, surface area, 44
SQ function, 82
SQRT function, 82
SQRT (NEG), 175
Square of number, 42
Square root, 42