Can u explain the given code as i dont know what is EPS and ABS pls explain in detail about it and also explain the code

#1

int main()

{

float a ;

scanf(“%f”,&a);

if(a == 10 ) printf(“YES”);

return 0;

}

//Use a margin of EPS ( ~ 0.0000001 ) in comparing. Ex - //if ( abs( a - 10 ) < EPS ) printf(“YES\n”);

#2

Hey @kul_boii
EPS is the smallest number such that 1 + EPS not equal to 1. EPS is a machine-dependent floating point value that provides an upper bound on relative error due to rounding in floating point arithmetic. Mathematically, for each floating point type, it is equivalent to the difference between 1.0 and the smallest representable value that is greater than 1.0. So basicallly, the lower comment means that in floats, while comparing, they don’t need to be exactly same, they can have a difference of less than an EPS(i.e. a v v small difference).

abs means absolute value, the function abs returns the absolute value, that is value independent of sign, for a positive number, it’s same as the number, for negative number, abs(number) gives the number without the - sign

the following program will help you understand abs better:

#include
#include //the abs function is contained in this header file

int main ()
{
cout << abs (3.1416) << ‘\n’;
cout << abs (-10.6) << ‘\n’;
return 0;
}

Output:
3.1416
10.6

#3

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