Haulage

In arithmetic, the carry is the name used to describe a mnemonic device in an arithmetic operation, mainly in the addition operation.

Used when a digit has been transferred from a column of digits to another column of higher power in a calculation algorithm.

Example

In the following written addition algorithm, the digit 1 is the carry:

127+5986SPECIAL SPECIAL acarreorSPECIAL SPECIAL 1 sumandorSPECIAL SPECIAL 2 sumandorSPECIAL SPECIAL Suma{crstyle}{blue}{crr}{color {blue}1}{blue}{blue}{blue}{blue}{blue}{blue}{blue}{blue}{blueftarrow}{blue

Explanation

To write the sum of the numbers 27 plus 59, he ordered his digits by columns (Tens and Units)

First I add the column of the units (7 + 9) and I get the number 16 (1 dozen and 6 units).

I write only 6 below the unit column and acarreo (o) I'll take it.) 1 dozen to the next column: the column of the tens.

In computing

In reference to a digital circuit like an adder, the word carry is used in a similar way. In most computers, the carry of the high-power bit of an arithmetic operation (or the shift of the last bit, in a shift operation) is placed in a special bit, called the carry bit, which can be used as a carry input in a multiple-precision arithmetic operation, or will be used to control the execution of a computer program.

The reserve carry is, in addition, the signal that marks the overflow of the addition of two numbers and that is added as 1 to the value to its left.