Old mechanical calculators had a fixed number of decimal digit positions but no sign.
2.
Each digit position represents a power of twenty-six, so for example, the numeral ABC represents the value.
3.
Starting at the rightmost ( least significant ) digit position, the two corresponding digits are added and a result obtained.
4.
A five-digit positions location is a small location for only a few zip codes are needed to smooth mail delivery.
5.
Since the reform of the postcode system in the mid-1990s, only a few five-digit positions locations remain.
6.
At 15 digits, the display was wider than those of the predecessor models, although the decimal point was displayed on its own digit position.
7.
Let the values be called 1 and 2 ( rather than 1 and 0 ), and let the variables ABC be indicated by the digit position.
8.
This means that no digit position can have an absolutely final value until it has been established whether or not a carry is coming in from the right.
9.
The probability that the " fourth " rightmost digit position is containing the digits 1, 2, 4 or 8 is 51 / 125 = 0.408.
10.
Supposing that we have two bits of storage per digit, we can use a redundant binary representation, storing the values 0, 1, 2, or 3 in each digit position.
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