It is easy to generate random numbers via a batch file under Windows Server and all MS Windows 11, 10, ... Desktop OS and MS Server!There are free tools that can generate random numbers like the ►► Windows tool NonCompressibleFiles , but to see how random numbers can be generated in order to understand the random numbers is enough under Windows 11, 10, 8.1, ... or current Microsoft Web Servers 2022, 2019 , 2016, a simple random number Tast.bat, or the command prompt! Contents: 1.) ... generate random numbers in the command line, four simple examples!
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| (Image-1) Generate random numbers and display them in the command prompt! |
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If you enter% random%, you will get numbers between 0 and 32,767. However, you can decrease the range of numbers using a command like the following, where 0 is the lower limit of the numbers and n-1 is the upper limit of the range.
2. Simple example a random number from 1 to 100
c:\User>set /a _rand=(%random%*100/32768) + 1
18
c:\User>set /a _rand=(%random%*100/32768) + 1
27
c:\Users>set /a _rand=(%random%*100/32768) + 1
43
A simple multiplication generates even larger random numbers
3. Simple example of generating a larger random number
C:\>set /a _rand=(%random%*%random%) + 1
251646066
C:\>set /a _rand=(%random%*%random%) + 1
290567809
C:\>
4. Simple example of a random number from 1 to 1 million
| (Image-2) Generate random numbers up to 1 million via the command prompt! |
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PS:
If you need to generate a random number on a Microsoft Windows system, you can do so through a command line interface, or in a batch file using% RANDOM%, which is one of many Windows environment variables. For a list of the environment variables available from Microsoft, see Windows Environment Variables on Every Windows System.
2.) ... A random number Tast.bat as a batch file (Euro-Jackpot 5 + 2)!
Copy the text via Copy Paste and into a Euro-Jackpot.bat created on the desktop , then simply start it by double-clicking and generate lottery numbers for the next draws via a command prompt or batch file!It also works without external tools such as LTK: ►► ... Lotto Numbers Generatr LTK!
The batch file for Lotto Euro-Jackpot 5+2:
@echo off
REM
SET maxvalue=50
SET minvalue=1
SETLOCAL
SET /A tmpRandom=((%RANDOM%)%%(%maxvalue%))+(%minvalue%)
echo "Lotto-1: %tmpRandom%"
SET /A tmpRandom=((%RANDOM%)%%(%maxvalue%))+(%minvalue%)
echo "Lotto-2: %tmpRandom%"
SET /A tmpRandom=((%RANDOM%)%%(%maxvalue%))+(%minvalue%)
echo "Lotto-3: %tmpRandom%"
SET /A tmpRandom=((%RANDOM%)%%(%maxvalue%))+(%minvalue%)
echo "Lotto-4: %tmpRandom%"
SET /A tmpRandom=((%RANDOM%)%%(%maxvalue%))+(%minvalue%)
echo "Lotto-5: %tmpRandom%"
SET maxvalue=10
SET minvalue=1
SET /A tmpRandom=((%RANDOM%)%%(%maxvalue%))+(%minvalue%)
echo "Euro-1: %tmpRandom%"
SET /A tmpRandom=((%RANDOM%)%%(%maxvalue%))+(%minvalue%)
echo "Euro-1: %tmpRandom%"
pause
ENDLOCAL
BREAK
►►... Thoughts on the quality of random numbers and technical aspects!
| (Image-3) Random numbers batch file 6 from 49 lottery |
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3.) ... How good are these random numbers, and what should be considered!
There are always points of contention when it comes to random numbers, but it is indeed the case that there are no random numbers in reality, whoever deals with them professionally will eventually understand why it is so.
If you are interested in random numbers then you should deal with many approaches to generating random numbers, not just look at them to understand them and use them sensibly.
The %RANDOM% is of course not the best choice, but you can use it as an example!
4.) Thoughts on the quality of random numbers and technical aspects!
The quality of random numbers depends on various factors, including the method by which they are generated and the purpose for which they are used. Here are some important aspects to consider:
Independence: Random numbers must be independent of each other, meaning that drawing one number must not affect the probability of drawing another number.
Equal distribution:
All possible random numbers must occur equally frequently in a sufficiently large number of draws.
Unpredictability:
After a tie with a certain result, subsequent random numbers must also occur with the same frequency.
Uniqueness:
Every random number must be unique, meaning it cannot appear twice in the same order.
In practice, random number generators are never perfect. They can always show deviations from the ideal distribution. Therefore, it is important to test the quality of the random numbers before using them for a particular application.
However, in some applications there are higher requirements for the quality of the random numbers. This is e.g. This is the case, for example, in cryptography, where random numbers are used to generate secret keys. In these cases, physical random number generators are often used, which are based on measurements of physical processes such as the noise of electronic components or radioactive decay.
The random numbers should always be evaluated using a series of tests to ensure quality.
The random numbers should not be used for applications where a high level of security is required.
The random numbers should not be used for applications where a high level of reproducibility is required.
In general, random number generators are capable of producing random numbers that are good enough for most applications. However, it is important to test the quality of the random numbers and pay attention to the betting conditions.
FAQ 88: Updated on: 15 October 2023 19:33
