Hp 50g Graphing Calculator Manual do Utilizador descarregar pdf (Página 192)

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[SPC] entry, and then press the corresponding modular arithmetic function. For

example, using a modulus of 12, try the following operations:

ADDTMOD examples

6+5

≡ -1 (mod 12) 6+6 ≡ 0 (mod 12) 6+7 ≡ 1 (mod 12)

11+5

≡ 4 (mod 12) 8+10 ≡ -6 (mod 12)

SUBTMOD examples

5 - 7

≡ -2 (mod 12) 8 – 4 ≡ 4 (mod 12) 5 –10 ≡ -5 (mod 12)

11 – 8

≡ 3 (mod 12) 8 - 12 ≡ -4 (mod 12)

MULTMOD examples

⋅8 ≡ 0 (mod 12) 9⋅8 ≡ 0 (mod 12) 3⋅2 ≡ 6 (mod 12)

⋅6 ≡ 6 (mod 12) 11⋅3 ≡ -3 (mod 12)

DIVMOD examples

12/3

≡ 4 (mod 12) 12/8 (mod 12) does not exist

25/5

≡ 5 (mod 12) 64/13 ≡ 4 (mod 12)

66/6

≡ -1 (mod 12)

DIV2MOD examples

2/3 (mod 12) does not exist

26/12 (mod 12) does not exist

125/17 (mod 12) ½ 1 with remainder = 0

68/7 ½ -4 (mod 12) with remainder = 0

7/5 ½ -1 (mod 12) with remainder = 0

POWMOD examples

≡ -4 (mod 12) 3

≡ 3 (mod 12) 5

≡ 1 (mod 12)

≡ 1 (mod 12) 6

≡ 0 (mod 12) 9

≡ -3 (mod 12)

In the examples of modular arithmetic operations shown above, we have used

numbers that not necessarily belong to the ring, i.e., numbers such as 66, 125,

17, etc. The calculator will convert those numbers to ring numbers before

Note: DIVMOD provides the quotient of the modular division j/k (mod n),

while DIMV2MOD provides no only the quotient but also the remainder of the

modular division j/k (mod n).

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