C++ , Why false

Question

Can anyone explain me this program logic ??
Double a=0.1;
Double b=0.2;
Double c =0.3;
If(a+b==c)
Cout<<"true"<<endl;
Else
Cout<<"false"<<endl;

Answer 1

https://www.sololearn.com/Discuss/1392436/?ref=app

Answer 2

floating point math precision...

https://betterprogramming.pub/why-is-0-1-0-2-not-equal-to-0-3-in-most-programming-languages-99432310d476?gi=cd20e94c19e8

Answer 3

visph Simba thank you so much I thought my ide is not working properly lol it's a joke btw thank you