How to resolve the algorithm Digital root step by step in the Arturo programming language

Published on 12 May 2024 09:40 PM
#Arturo

How to resolve the algorithm Digital root step by step in the Arturo programming language

Table of Contents

Problem Statement

The digital root,

X

{\displaystyle X}

, of a number,

n

{\displaystyle n}

, is calculated: The additive persistence is the number of summations required to obtain the single digit. The task is to calculate the additive persistence and the digital root of a number, e.g.: The digital root may be calculated in bases other than 10.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Digital root step by step in the Arturo programming language

Source code in the arturo programming language

droot: function [num][
    persistence: 0
    until [
        num: sum to [:integer] split to :string num
        persistence: persistence + 1
    ][ num < 10 ]
    return @[num, persistence]
]

loop [627615, 39390, 588225, 393900588225] 'i [
    a: droot i
    print [i "has additive persistence" a\0 "and digital root of" a\1]
]

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