A __ number , can be thought__ of as a projection , used for example for measuring , be it time or distance , or for countig . A number is a discrete way of measuring , discrete as in … Read More

# Category: Data structure and algorithms

# What is a signed integer ?

The question , what is a `signed`

integer , __ is the question__ how to represent integers in the computers .

__ In mathematics__ , integers belong to the set

`Z`

, which contains positive and negative whole numbers such as … Read More # What is an unsigned integer ?

An integer in mathematics , is any number which belong to the set `Z`

. The set `Z`

, contains positive whole numbers , such as : `1`

, negative whole numbers such as : `-1`

, and the … Read More

# binary search algorithm in python , and php

# Permutate a string letters recursively in python

Let us say we have a string and we want to permutate through its letter . So for example

- if the string is empty it will return an empty list
- if it contains only one characters it must return a

# Solving english ruler problem using recursion in python and swift

We must print an english ruler using recursion . An english ruler is ruler where each unit has a number of tick. a unit can be divided into smaller units at 1/2 the interval 1/4 the interval 1/8 the interval … Read More

# what is a byte ?

## what is a byte ?

A byte is 8 bits ,

[_ _ _ _ _ _ _ _ ] 7 6 5 4 3 2 1 0 number of bits = 7 - 0 + 1 = 8

A … Read More