Here is an example of project on Excel Online[^]

Did you try Excel Online ?

Sure ! :laugh: number can never be divided by zero 0 ; even 0/0 :confused: It is the real error of my process

I could fix the post as : Given a C ]--;0[ U ]0;++[ (meaning 0 excluded) Now ??

Ah là là :laugh: Mathematics !! (French laughing)

I agree but here 1/9 = 0.111111111111111111111111...... is not really true ; we lost 0.000000000000000000000.......9 I could write 1/9~= 0.111111111111111111111111...... then 1 ~= 0.9999999999999999999999999...... ??

Thank you Max and happy new Xear

the answer is 42 :laugh: :laugh:

very very TRUE:thumbsup::thumbsup:

a=0 never means a/a=0 (a can never be 0). a=a <=> a/a=a/a <=> 1=1 I could fix the post as : Given a C ]--;0[ U ]0;++[ (meaning 0 excluded)

1=1 a=a <=> a/a=1 a²=a² ?? a=b <=> a/b=1 a²=b² ?? then a=b a-c = b-c ? a-a = a-a (assuming a=b and a=c) ?? Where is the division by zero ? I've added c at both sides of =

ok !! :thumbsup: My best answer[^]

:laugh: As I know mathematics doesn't approve 0=0 so, the error is a²-a²=a²-a² (meaning 0=0) exactly it is a teacher who showed it to us.

:thumbsdown: I don't think, this is a simple factorization

0 = false 1 or 2 or >2 = true 1=true 2=true ... ?? :laugh: :laugh:

:laugh: :laugh: :laugh:

Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

Don't think about this too much more

//Husband age
int hage;
//Wife age
int wage;
Debug.WriteLine("The sum of their age is " + (hage + wage).ToString()+" at the year of marriage in the 18th century");
//The sum of their age is 42 at the year of marriage in the 18th century

Do you see the 42, now you know where it's comming from ;) .