fx-82MS fx-82TL fx-9860GII TI-83
Numerals
On a Casio calculator you can enter the numerals 0 - 9
0 1 2 3 4 5 6 7 8 9
Example 1
To calculate 0 × 1 = 0
0×1
0.0 × 1 =
and also 0 × 0 = 0
0×0
0.0 × 0 =
Example 2
To calculate 0 ÷ 1 = 0
0÷1
0.0 ÷ 1 =
Example 3
To enter 1 ÷ 0
Ma ERROR
1 ÷ 0 = AC/ON
and also 0 ÷ 0
Ma ERROR
0 ÷ 0 = AC/ON
Dividing by zero always gives a message, and that is correct.
Example 4
To calculate 10 = 1
1xy0
1.1 Xy 0 =
Example 5
To enter 00
Ma ERROR
0 Xy 0 = AC/ON
although it is determined by definition that 00 ≝ 1. Take that as a warning.
Example 6
To calculate 0! = 1
SHIFT x! 0!
1.0 x⁻¹ =
This is correct, then it is determined by definition that 0! ≝ 1.
Example 7
To calculate cos (0) = 1
cos 0
1.cos 0 =
Example 8
To calculate √0 = 0
√0
0.√ 0 =
Example 9
To calculate
0C0
1.0 nCr 0 =
Details
In the decimal system you need the 0 to indicate that a place in a decimal number has no value, as in the number 12305. The total value of a number can also be 0.