Let us consider the code
x := 11.1111111111;
Q := fopen("E:\\rezz.txt", WRITE):
fprintf(Q, "%e \n", x):
Q := fopen("E:\\rezz.txt", READ):
y := op(fscanf(Q, " %e\n"));
The question is: how to obtain the same accuracy in y as in x? The increase of Digits does nothing.