C Program to Generate Random Float Number

C Program To Generate Random Float Numbers Between 0 to 1

This c program is used to generate the random floating number between 0 to 1.

#include <stdio.h>                                                              
#include <stdlib.h>                                                             
                                                                                
void main()                                                                     
{                                                                               
    float n;                                                                    
    int ch;                                                                     
                                                                                
    printf("\nRandom numbers between 0 to 1");                                  
    do                                                                          
    {                                                                           
        n = (float)rand()/RAND_MAX;                                             
        printf("\nRandom number: %f", n);                                       
        printf("\nDo you want to generate again (1/0): ");                      
        scanf("%d", &ch);                                                       
    } while(ch == 1);                                                           
                                                                                
}                                                           

$ cc random1.c 
$ ./a.out 

Random numbers between 0 to 1
Random number: 0.840188
Do you want to generate again (1/0): 1

Random number: 0.394383
Do you want to generate again (1/0): 1

Random number: 0.783099
Do you want to generate again (1/0): 0 

C Program To Generate Random Float Numbers Between 1 to 10

This c program is used to generate the random floating number between 1 to 10.

#include <stdio.h>                                                              
#include <stdlib.h>                                                             
                                                                                
void main()                                                                     
{                                                                               
    float n;                                                                    
    int ch;                                                                     
                                                                                
    printf("\nRandom numbers between 0 to 1");                                  
    do                                                                          
    {                                                                           
        n = ((float)rand()/RAND_MAX)*(float)(10.0);                             
        printf("\nRandom number: %f", n);                                       
        printf("\nDo you want to generate again (1/0): ");                      
        scanf("%d", &ch);                                                       
    } while(ch == 1);                                                           
                                                                                
}                                                         

$ cc random1.c
$ ./a.out 

Random numbers between 0 to 1
Random number: 8.401877
Do you want to generate again (1/0): 1

Random number: 3.943829
Do you want to generate again (1/0): 1

Random number: 7.830992
Do you want to generate again (1/0): 1

Random number: 7.984400
Do you want to generate again (1/0): 1

Random number: 9.116474
Do you want to generate again (1/0): 1

Random number: 1.975514
Do you want to generate again (1/0): 1

Random number: 3.352227
Do you want to generate again (1/0): 0

C Program To Generate Random Float Numbers Between 10 to 100

This c program is used to generate the random floating number between 10 to 100.

#include <stdio.h>                                                              
#include <stdlib.h>                                                             
                                                                                
void main()                                                                     
{                                                                               
    float n;                                                                    
    int ch;                                                                     
                                                                                
    printf("\nRandom numbers between 0 to 1");                                  
    do                                                                          
    {                                                                           
        n = ((float)rand()/RAND_MAX)*(float)(100.0);                             
        printf("\nRandom number: %f", n);                                       
        printf("\nDo you want to generate again (1/0): ");                      
        scanf("%d", &ch);                                                       
    } while(ch == 1);                                                           
                                                                                
}                                                         

$ cc random1.c
$ ./a.out 

Random numbers between 0 to 1
Random number: 84.018776
Do you want to generate again (1/0): 1

Random number: 39.438293
Do you want to generate again (1/0): 1

Random number: 78.309921
Do you want to generate again (1/0): 1

Random number: 79.844002
Do you want to generate again (1/0): 0