Keystrokes
(2) Deleting
(a) If an
press ~ and key
TM 5-6675-316-14
Display
16.0000
Sum of x values from register
R.1
98.0000
Sum of squares of x values
from register R.2
21.0000
Sum of y values from register
155.0000
Sum of squares of y values
from register R.4
122.0000
Sum of products of x and y
values from register R.5
3.0000
Number of entries (n=3)
from register R.O
and correcting data.
incorrect value is keyed in and ~ has not yet been pressed,
in correct value.
(b) To change one of the values, or if after pressing
q
one of the values
was erroneous, correct the accumulations by using Z- (summation minus) key as
follows:
Key incorrect data pair into X- and Y-registers.
m
can be used to return a single incorrect data
value to displayed X-register.
Press FJZ.
to delete incorrect data.
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
9.0000
Incorrect y value is entered
again.
8.
Correct x value is entered
2.0000
again.
Number of entries (n) is now
two .
6-29
