Vertical type means that each transition number is changed by the last transition number, and then the single digits of the last transition number are multiplied by 2. If carry is needed, proceed to 1, then increase the unit number by ten digits, and so on, and add a new operand to the unit number.

Extended data:

Longitudinal formula refers to a longitudinal formula in the calculation process, which makes the calculation simple.

Department:

For example, 42 divided by 7.

On a scale of 4 [from high to low]. When calculating the division vertically, start from most significant bit, such as: 42 from most significant bit 4; If it is not divisible, such as: 4 is not divisible by 7, then use the highest bit and the next bit to synthesize a number to be divisible until it can be divisible by the divisor; For example, if 4 can't be divided by 7 in 42, then 4 and 2 are combined into a number. If 42 is divided by 7, the quotient is 6.

References:

Vertical-Baidu encyclopedia