Storage Register Arithmetic Exercises; Problems - HP -10C Owner's Handbook Manual

Section 2: Memory Stack, LAST X, and Data Storage

Storage Register Arithmetic Exercises

Keystrokes
´•4
18O0
3O÷0
l0
4O*0
l0
O+0
l0
40O-0
l0

Problems

1. Calculate the value of x in the following equation
Answer: 20.9104.
A possible keystroke solution is:
Display
18.0000
3.0000
6.0000
4.0000
24.0000
24.0000
48.0000
40.0000
8.0000
− ÷
. 8 33 4 ( . 5 ) 2
=
x
−
. 4 ( 3 . 3 15
Display shows result of
previous calculation.
Stores 18 in R
Divides number in R
(18) by 3.
Recalls copy of new
number in R
Multiplies new number
in R (6.0000) by 4.
0
Recalls copy of new
number in R
Adds what is in display
(24) to number in R
Recalls copy of new
number in R
Subtracts 40 from
number in R
Recalls copy of new
number in R
− ×
(( . 8 33 . 7 46 ) . 0 32
− ×
. 2 75 ) . 1 ( 71 . 2 01 )
.
0
0
.
0
.
0
.
0
.
0
.
0
.
0
)
31