Variables,
47-53
catalog of, 49
clearing, 49-50
copying, 49
current
value
of,
77
displaying, 49
indirect,
103
integration, 128
listing, 49
names
of,
47-48,
77
in programs, 77
in programs, copying, 79-80
in programs, displaying, 79-80
SOLVE,
112
unknown,
110-112,
120
Vector
addition,
142
components,
171
operations, 164-175
converting to rectangular coordi
nates,
62
VIEW,
49,
79-80
with
nondecimal
numbers,
150
Volume of a cylinder, 80-81
Warranty, 248-249
service,
251
United Kingdom, 249
Weighted mean. See Mean, weighted
Windows,
149-150
Word
size,
149
Wrong function, correcting, 42
Wrong numbers, correcting, 42
x-z
x-estimate,
158-159,
212
X-register, 35-40, 47
clearing, 40-41
clearing in a program, 73
exchanging with Y-register, 37
and
integration, 128
in
programming,
70
with
SOLVE,
113,
120
for
statistical
data,
154
308
Index
testing, 95-96
with Y-register, comparing, 95-96
with zero, comparing, 96
XEQ, 75
subroutine,
91
y-estimate, 158-159, 212
y-intercept, 159, 204, 211-212
Y-register, 35-37, 47
and
integration, 132
for
statistical
data,
154
y*, 56
Z-register, 35-36, 47
Zero,
40
Zero
in
variable,
50
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