Floating data type : %f, %e(double), %lf(long double) Example using printf and scanf function

C Programming Language Overview of C Language (Article) Overview of C Language (Program)

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Program:

#include <stdio.h> 
int main() 
{ 
    float a = 0.0; 
    scanf("%f", &a); // input is 45.65 
    printf("%f\n", a); 
    return 0; 
}

Output:

45.65
45.650002
Press any key to continue . . .

Explanation:

scanf(char *format, arg1, arg2, …)

This function take input using standard input (keyboard) and store it in variable accordingly. It returns the number of items successfully read. Formal parameter arg1, agr2, .. must be a pointer

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