TM 5-6675-321-14
Keystrokes
Display
m q 13
16.0000
Sum of x values from register
R.1.
m q E
98.0000
Sum of squares of x values
from register R.2.
mu~
21.0000
Sum of y values from register
Dnm
155.0000
Sum of squares of y values
from register R.4.
m q &l
122.0000
Sum of products of x and y
values from register R.5.
m q m
3.0000
Number of entries (n=3)
f r o m r e g i s t e r R . 0
( 2 ) D e l e t i n g a n d c o r r e c t i n g d a t a .
(a) If an incorrect value is keyed in and D h a s n o t y e t b e e n p r e s s e d,
p r e s s @l
and key in correct value.
(b) To change one of the values,
o r i f a f t e r p r e s s i n g o n e o f t h e v a l u e s
was erroneous,
correct the accumulations by using Z- (summation minus) key as
f o l l o w s:
Key incorrect data pair into X- and Y-registers.
m
can be used to return a single incorrect data
value to displayed X-register.
P r e s s 132-
t o d e l e t e i n c o r r e c t d a t a .
Key in correct values for x and y. If one value of an
(x. Y ) data pair is incorrect, both values must be
deleted and reentered.
press
D
Example:
If last data pair (8, 9) in previous example should have been (8, 6),
correct the accumulation as follows, press
Keystrokes
Display
E
m
9.0000
El
8.
El
x-
2.0000
Incorrect y value is entered
again.
Correct x value is entered
again.
Number of entries (n) is now
two .
6-29
