add qr code to ssrs report Generating Pseudo-Random Numbers #include #include <iostream.h> <stdlib.h> in Software

Encoding QR Code ISO/IEC18004 in Software Generating Pseudo-Random Numbers #include #include <iostream.h> <stdlib.h>

EXAMPLE 3.20 Generating Pseudo-Random Numbers #include #include <iostream.h> <stdlib.h>
Quick Response Code Decoder In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Quick Response Code Drawer In None
Using Barcode maker for Software Control to generate, create QR Code image in Software applications.
main0 -t for (int i = 0; i -C 8; i++) tout CC rand() CC endl; ' tout << "RANDJAX = ' << RAND-MAX CC endl; > J403527590 377401575 G6282$O84 11479Q27Erl 2(,l3wi5474 3688QQ.89.9 Exi%O299-52 4862561.85 _ RrnD-rnX = 2147483647 16U3527590 377401575 662824084 fi47902782 2'035015$74' 3 6 8800899 ZL508029952 486256485 JRMD-MX = 2147483687 .' '. .: . ., . _',' 1. .,, : :: .<.: ;' '. . . '.' . '. ,,_ ' ._. " . . .., i ,;_;..,:: .: . i ., . .:;.:. .,:I ,. ,.:. : _ .,:; z . .;, .,, .:, I. .I .I. .: '_ '. '.
QR-Code Decoder In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
Paint Quick Response Code In Visual C#.NET
Using Barcode encoder for .NET Control to generate, create QR-Code image in Visual Studio .NET applications.
,. ,.
Print QR Code ISO/IEC18004 In VS .NET
Using Barcode printer for ASP.NET Control to generate, create QR Code 2d barcode image in ASP.NET applications.
Painting QR In VS .NET
Using Barcode creator for VS .NET Control to generate, create QR Code ISO/IEC18004 image in .NET framework applications.
,. .,
Generating QR Code 2d Barcode In VB.NET
Using Barcode creation for Visual Studio .NET Control to generate, create Quick Response Code image in Visual Studio .NET applications.
Code 39 Extended Generator In None
Using Barcode printer for Software Control to generate, create Code 3/9 image in Software applications.
.,. I
Generate Barcode In None
Using Barcode creation for Software Control to generate, create barcode image in Software applications.
Generate ECC200 In None
Using Barcode creator for Software Control to generate, create Data Matrix image in Software applications.
,.,.
Printing Code128 In None
Using Barcode encoder for Software Control to generate, create Code 128A image in Software applications.
Painting European Article Number 13 In None
Using Barcode encoder for Software Control to generate, create GS1 - 13 image in Software applications.
.; _
Making USPS OneCode Solution Barcode In None
Using Barcode creator for Software Control to generate, create Intelligent Mail image in Software applications.
Bar Code Drawer In None
Using Barcode maker for Font Control to generate, create bar code image in Font applications.
. ..
Make GTIN - 13 In Objective-C
Using Barcode maker for iPad Control to generate, create EAN-13 image in iPad applications.
UPC-A Printer In Objective-C
Using Barcode printer for iPhone Control to generate, create UPC-A image in iPhone applications.
.; I =
Printing Barcode In None
Using Barcode drawer for Online Control to generate, create barcode image in Online applications.
Recognize EAN13 In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
4 .:, ;:' _ :. '..'. .:',: , 5 : .:.' .".. .: '.', _' ,.,. '. ..j,..,. . . l. ;..:' . ,:. _ _:,;. . :. ., :'. . :"' -.' '. _ .'. .,_,. .'. : .C "' ..' . . : L .: : : '. :
Recognize Code 128C In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
Decoding Bar Code In C#.NET
Using Barcode Control SDK for VS .NET Control to generate, create, read, scan barcode image in VS .NET applications.
On each run, the computer generates 8 unsigned integers that are uniformly distributed in the RAND-MAX, which is 2,147,483,647 on this computer. Unfortunately each run produces the same sequence of numbers. This is because they are generated from the same seed.
interval 0 to
Each pseudo-random number is generated from the previously generated pseudo-random number by applying a special number crunching function that is defined internally. The first pseudo-random number is generated from an internally defined variable, called the seed for the sequence. By default, this seed is initialized by the computer to be the same value every time the program is run. To overcome this violation of pseudo-randomness, we can use the srand ( ) function to select our own seed.
CHAP. 31
ITERATION AND FLOATING TYPES
EXAMPLE 3.21 Generating Pseudo-Random Numbers
#include #include <iostream.h> <stdlib.h>
main0 1 unsigned seed; tout << "Enter seed: I'; tin >> seed; srand(seed); for (int i = 0; i < 8; i++) tout -CC rand() C-C endl;
Enter seed: 0
// initializes the seed
12345 1&I6932606; 654583775
I.449466924 229283573 H.59335178 1051550459~ 2293799192
Enter s e e d : ' 14069326C% 654583775 1449466924 229283573 1109335178 1052550459 1293799192 794471793
123&s "
The line s r and ( s eed ) assigns the value of the variable s e ed to the internal seed used by the rand ( ) function to initialize the sequence of pseudo-random numbers that it generates. Difference seeds produce difference results. Note that the seed value 12345 used in the third run of the program is the first number generated by rand ( > in the first run. Consequently the first through seventh numbers generated in the third run are the same as the second through eighth numbers generated in the first run. Also note that the sequence generated in the second run is the same as the one produced in Example 3.20. This suggests that, on this computer, the default seed value is 1.
ITERATION AND FLOATING TYPES
[CHAP. 3
The problem of having to enter a seed value interactively can be overcome by using the
computer s system clock. The system dock keeps track of the current time in seconds. The time ( > function defined in the header file <time. h> returns the current time as an unsigned integer. This then can be used as the seed for the rand ( > function.
EXAMPLE 3.22 Generating Pseudo-Random Numbers #include #include #include <iostream.h> <stdlib.h> <time.h>
main0 -t unsigned seed = time(NULL); tout << "seed = ' CC seed -CC endl; srand(seed); for (int i = 0; i < 8; i++) tout << rand() -CC endl;
// uses the .system
clock
// initializes the seed
seed = ~808248257 1$7736%330 352899587 1443923328 , 1 8 5 7 4 2 3 2 8 9
On the first run, the time ( > function returns the integer 808,148,157 which is used to seed the random number generator. The second run is done 3 seconds later, so the time ( > function returns the integer 808,148,160 which generates a completely different sequence.
In many simulation programs, one needs to generate random integers that are uniformly distributed in a given range. The next example illustrates how to do that.
Copyright © OnBarcode.com . All rights reserved.