Texas Instruments TI-60 - Page 45

CHAPTER 1-5
NUMBER SYSTEMS
In mis mode, you can only enter mo digits 0 through 7 Any leading zeros
are ignored The calculator allows you to enter positive octal numbers as
large as 3777777777 Numbers beyond this are interpreted as negative
(two's complement) numbers
The following table 9hows the positive octal numbers and their two's
complements II also shows the decimal equivalent lor each number
Decimal Positive
Value (+) Octal
0 0
1 1
2 2
Two a Decimal
Complement Value (-)
0 0
7777777777 -1
7777777776 -2
536870910 3777777776 4000000002
536870911 3777777777 4000000001
-536870910
-536870911
Notice I hat the largest positive octal number represents 56370911 ( tJec ,. and
the smallest two's complement number represents - 536870911 (0eC) .
Example 1
Convert 77 |OCT) to its hexadecimal and decimal equivalents
Press Display Comments
r OHH 3SI! 0 Clear calculator
8H i W i 77 77 Enter number in octal mode
INV #1 3F Convert to hexadecimal
1MV Ifni 63 Convert to decimal
Example 2
Calculate 100 |DK) -+• 3 DEC . Convert the result to its octal equivalent and
then convert bach to decimal.
Press Display
WHatti o
100 ! 3 - 33.33333333
inv m 41
m 33
Clear calculator
Enter problem
Convert to octal
Convert back to decimal
Nonce that the BM key converts only the integer portion of the number in
the display
35-GB