# Random number generator

A random number is a number that is generated by a process that is unpredictable and lacks any pattern or order. Random numbers are often used in statistical analysis, computer programming, and other fields where it is important to have a source of unpredictable numbers. There are many different methods for generating random numbers, ranging from simple physical processes like rolling dice or shuffling cards, to more complex algorithms that use mathematical formulas to produce random results. In general, the quality of a random number generator is determined by how well it approximates true randomness, and how well it can produce a wide range of possible values.

## How a random number generator works ?

There are many different ways that a random number generator can work, depending on the specific design and implementation of the tool. Here are a few examples:

- One type of random number generator uses a physical process to produce random numbers. For example, the generator might use a die or a deck of cards that has been shuffled, and then use a set of rules to translate the physical outcome of the process into a numerical value.
- Another type of random number generator uses a mathematical algorithm to produce random numbers. These algorithms often use complex formulas and a starting value called a seed to generate a sequence of numbers that appear to be random. The quality of the randomness produced by these algorithms can vary, depending on the specific design of the algorithm and the quality of the seed value.
- Some random number generators use a combination of physical and mathematical processes to produce random numbers. For example, the generator might use a physical process like shuffling cards to produce a seed value, and then use a mathematical algorithm to generate a sequence of numbers based on that seed value.

## How a program generate random number ?

A program can generate a random number using a built-in random number generator (RNG) function or algorithm. Most programming languages have a built-in function that can be used to generate random numbers. These functions typically use a mathematical algorithm to produce a sequence of numbers that appear to be random. The quality of the randomness produced by these algorithms can vary, depending on the specific design of the algorithm and the quality of the starting value (also called a seed) that is used to generate the sequence of numbers.

To generate a random number using a built-in RNG function in a programming language, the programmer would typically call the function and specify the range of possible values that they want the random number to be drawn from. For example, in the Python programming language, the `random.randint()`

function can be used to generate a random integer between a specified minimum and maximum value. Here is an example of how this function might be used:

`Copy code````
import random
# Generate a random integer between 1 and 10
random_number = random.randint(1, 10)
# Print the random number to the console
print(random_number)
```

In this example, the `random.randint()`

function is called with the minimum value of 1 and the maximum value of 10. This means that the function will return a random integer between 1 and 10, inclusive. The value that is returned by the function is assigned to the `random_number`

variable, and then printed to the console.

It is important to note that the numbers generated by a RNG function are not truly random, but rather they are pseudorandom. This means that the numbers are generated using a deterministic algorithm, so they are not truly unpredictable. However, for most purposes, pseudorandom numbers are sufficient and can be used in place of truly random numbers.

## What is RNG random generator ?

RNG stands for "random number generator." An RNG is a tool that produces random numbers or random events according to a set of specified parameters. RNGs can be physical devices, like dice or shuffled playing cards, or they can be computer programs that use algorithms to produce random results. These tools are often used in scientific experiments, games, and other situations where it is important to have a source of randomness.

In the context of computer programming, an RNG is typically a built-in function or algorithm that is used to generate random numbers. These functions are often called from within a program to produce a sequence of numbers that appear to be random. The quality of the randomness produced by an RNG can vary, depending on the specific design of the algorithm and the quality of the starting value (also called a seed) that is used to generate the sequence of numbers.