Doing arithmetic inside registers, Register number – HP 10B User Manual
Page 42
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In most cases, it is unnecessary to clear a storage register since storing a
number replaces the previous contents. However, you can clear a sin^e
register by storing 0 in it. To clear all the registers at once, press
■l CLEAR ALD.
Doing Arithmetic Inside Registers
You can do arithmetic inside storage registers R
q
through R
9
. The result
is stored in the register.
Keys
New Number in Register
B|STO|
(+)
register number
■|STO|
□
register number
B|STO|
0
register number
BjsTO]
(±)
register number
Old contents + displayed number
Old contents - displayed number
Old contents X displayed number
Old contents
-
displayed number
Example.
Store 45.7 in R
3
, multiply by 2.5, and store the result in R
3
.
Keys:
Display:
Description:
45.7 ■ STÓ1 3
45.70
Stores 45.7 in R
3
.
2.5
B
STO] 0 3
2.50
Multiplies 45.7 in R
3
by
2.5 and stores result
(114.25) in R
3
.
fRCLl3
114.25
Displays R
3
.
3: Number Storage and Arithmetic 39