TM 5-6675-324-14
Keystrokes
Display
Sum of x values from register
16.0000
R.1
Sum of squares of x values
98.0000
from register R.2
Sum of y values from register
21.0000
Sum of squares of y values
155.0000
from register R.4
Sum of products of x and y
122.0000
values from register R.5
Number of entries (n=3)
3.0000
from register R.0
(2) Deleting and correcting data.
has not yet been pressed,
(a) If an incorrect value is keyed in and
press
and key in correct value.
(b) To change one of the values, or if after pressing
one of the values
(summation minus) key as
was erroneous, correct the accumulations by using
follows:
Key incorrect data pair into X- and Y-registers.
can be used to return a single incorrect data
value to displayed X-register.
to delete incorrect data.
Press
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
Example: If last data pair (8, 9) in previous example should have been (8, 6),
correct the accumulation as follows, press:
Keystrokes
Display
Incorrect y value is entered
9.0000
again.
Correct x value is entered
8.
again.
Number of entries (n) is now
2.0000
two.
7-29
