HP 10bII+ User Manual page 59

Example 4
Calculate the percent change between 55 and 32 and store it as a constant. Then calculate
the percent change between 50 and 32, and 45 and 32.
Table 4-4 Calculating percent change
Keys
VV\¨DGª
4
V:4
YV4
All of the other two-number functions on the calculator may be used with
manner as shown in example 4. For a complete list of two-number functions, refer to the
section titled, Two-Number Functions in chapter 2.
Using the M Register
s p
The , , and
called the M register. In most cases, it is unnecessary to clear the M register, since
replaces the previous contents. However, you can clear the M register by pressing
To add a series of numbers to the M register, use
add subsequent numbers. To subtract the displayed number from the number in the M register,
y
press followed by
Table 4-5 Keys for performing memory operations
Keys
s
p
m
m
keys perform memory operations on a single storage register,
m
.
Description
Stores displayed number in the M register.
Recalls number from the M register.
Adds displayed number to the M register.
Display Description
32.00 Stores % change 32 as constant.
-41.82 Calculates the % change
between 55 and 32.
-36.00 Calculates the % change
between 50 and 32.
-28.89 Calculates the % change
between 45 and 32.
s
to store the first number and
Number Storage and Storage Register Arithmetic
ª
in the same
s
:s
.
m
to
51