differences %e, %f and %g

At this opportunity I will explain about defining formats and different from the% e,% f,% g.
% e function to display the real number in exponential notation, such as the following example;

# include
main ()
(

    float A = 0.007654321

   

    printf ( "% e \ n", A);
)

if the program is executed, the results:
7.654321e-003

% f function untukmenampilkan real numbers in the notation aaaa.aaaaaa, if you use a program like this:

# include
main ()(
    float A = 0.007654321;

    printf ( "% f \ n", A);)

then the output produced:

0.007654

% g function as substitutes% f or% e depends on the shortest.

example program:

# include
main ()(
    float X1 = 345.6789;
    float x2 = 98765432.1;
    printf ( "% g% g \ n", X1, X2);)

the output after the program above was executed:

345,679 9.87654e +007