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Chapter 17 - Numbers In Different Bases; The Base Menu; Writing Non-decimal Numbers - HP 49g+ User Manual

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Chapter 17
Numbers in Different Bases
Besides our decimal (base 10, digits = 0-9) number system, you can work
with a binary system (base 2, digits = 0,1), an octal system (base 8, digits =
0-7), or a hexadecimal system (base 16, digits=0-9,A-F), among others. The
same way that the decimal integer 321 means 3x10
number 100110, in binary notation, means
5
4
3
1x2
+ 0x2
+ 0x2
+ 1x2

The BASE menu

The BASE menu is accessible through
flag 117 set to CHOOSE boxes (see Chapter 1 in this guide), the following
entries are available:
With system flag 117 set to SOFT menus, the BASE menu shows the
following:
This figure shows that the LOGIC, BIT, and BYTE entries within the BASE menu
are themselves sub-menus. These menus are discussed in detail in Chapter 19
of the calculator's User's Guide.

Writing non-decimal numbers

Numbers in non-decimal systems, referred to as binary integers, are written
preceded by the # symbol (
2
1
0
+ 1x2
+ 0x2
= 32+0+0+4+2+0 = 38.
‚ ã
( the
„ â
) in the calculator. To select the current
2
1
0
+2x10
+1x10
, the
3
key).
With system
Page 17-1

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