HP HP-10C

Section 3: Numeric Functions 41
Keystrokes Display
´CLEARQ
0.0000
Clears data storage
registers (R
0
through R
9
and stack).
´•3
0.000
Limits display to
correspond to the
significant figures of
data.
1.761v
1.761
5.552z
1.000
1972 data.
1.775v
1.775
5.963z
2.000
1973 data.
1.792v
1.792
6.135z
3.000
1974 data.
1.884v
1.884
6.313z
3.000
1975 data.
1.943v
1.943
6.713z
4.000
1976 data.
l1
30.676
Sum of x-values (∑x)
from register R
1
.
l2
188.939
Sum of squares of x-
values (∑x
2
) from
register R
2
.
l3
9.155
Sum of y-values (∑y)
from register R
3
.
l4
16.788
Sum of squares of y-
values (∑y
2
) from
register R
4
.
l5
56.292
Sum of products of x-
and y-values (∑xy) from
register R
5
.
Note: Unlike storage register arithmetic, the z and w operations allow overflow to
occur in storage registers R
0
through R
5
without indicating Error 1 in the display.