When it equals fish.

When you are changing units, 1 + 1 may not equal two. For example: 1 man + 1 woman = 1 couple It also depends upon the base you are in. For example, in binary: 1 + 1 = 10 (the 10 is equivalent to the decimal base number 2)

Actually there is an answer... but its hard to understand. 1 + 1 can equal .9999 repeating forever ending at an imaginary 8. The reason is that .9999 repeating forever is equal to 1 because there is no amount difference between the two. so .9999 repeating + .9999 repeating would equal 1.9999 repeating until it ends at a non existant 8. in which case... 1 + 1 does not equal 2.

When you have TOO MUCH TIME ON YOUR HANDS!!!!

When its a multiplication sign which looks like a plus because of the person's bad hand writing.

When women are doing math Gilbert and Sullivan mention it in Princess Ida, line indicated by >>. I'm female so don't give me any trash for that. Women of Adamant, fair Neophytes- Who thirst for such instruction as we give, Attend, while I unfold a parable. The elephant is mightier than Man, Yet Man subdues him. Why? The elephant Is elephantine everywhere but here (tapping her forehead), And Man, whose brain is to the elephant's As Woman's brain to Man's - (that's rule of three),- Conquers the foolish giant of the woods, As Woman, in her turn, shall conquer Man. >>In Mathematics, Woman leads the way; The narrow-minded pedant still believes That two and two make four! Why, we can prove, We women - household drudges as we are- That two and two make five - or three - or seven; Or five and twenty, if the case demands! Diplomacy? The wiliest diplomat Is absolutely helpless in our hands. He wheedles monarchs - Woman wheedles him! Logic? Why, tyrant Man himself admits It's a waste of time to argue with a woman! Then we excel in social qualities: Though man professes that he holds our sex In utter scorn, I venture to believe He'd rather pass the day with one of you, Than with five hundred of his fellow-men! In all things we excel. Believing this, A hundred maidens here have sworn to place Their feet upon his neck. If we succeed, We'll treat him better than he treated us: But if we fail, why, then let hope fail too! Let no one care a penny how she looks- Let red be worn with yellow - blue with green- Crimson with scarlet - violet with blue! Let all your things misfit, and you yourselves At inconvenient moments come undone! Let hair-pins lose their virtue: let the hook Disdain the fascination of the eye- The bashful button modestly evade The soft embraces of the button-hole! Let old associations all dissolve, Let Swan secede from Edgar - Gask from Gask, Sewell from Cross - Lewis from Allenby! In other words, let Chaos come again!

When you've asked an accountant to have it equal something else....

When you were still a one year old baby. nobody cares about math that time

When there is a negative in front of the 1

When 1 is proved to be an infinity as a result of the infinite amount of fractions and decimal places between 0 and 1. Since infinity plus infinity is not 2, so 1 + 1 can't be 2 either.

Never. Because the exact amount of 1 is not equal to .99999 as there is a difference, despite its infantismal size. It is still a difference and thus not equal to the exact amount of 1. So 1 plus 1 equals 2 exactly.

when it equals a window.

When you're an accountant at Enron.

When an accountant tells you it's not equal to two. When an economist tells you it's not equal to two. When the government tells you it's not equal to two.

During a Divorce.

In logic the + sign is used for OR. Therefore 1 + 1 = 1

In the binary system 1 + 1 = 10

All kinds of imperfect stiuations! 1+1=2 Not if he's married. 1+1=2. Not if your gay! 1+1=2. Not if your bulimic.

Graphicaly, in binary. 1+1=10 (though 10 is actually still 2 written in a different way) . And in many things where the numbers are not abstract symbols, but signify a quantity and when addition is not a standard algebraic addition, but something taken out of the ass. Though it doesn't count, cause no sane person uses algebraic terminology exchangebly with real life situations and believes algebraic addition is the same as making objects interact physically. . When you consider 1 as an abstract number, 10 as Your base system and + as an algebraic standard addition in real numbers (as it is assumed by default by people who are not trolling) then 1+1 is always 2. . Don't make people sell You some philosophical bullshit about this, cause it's ridiculous every time I hear it.

in the Bible, when you are getting married..it would not be 1+1=2, but it will be 1+1=1...coz you are combined into 1 spiritually...

When it is added by either a government oversight committee or a CEO of a modern financial institution.

enron. arthur anderson. any good accountant or tax lawyer. . i remember when president bush (43) wanted to push the pharmaceutical package for medicare through, the accountants said it would cost $400 billion. congress passed it. a month later, the estimated cost went up to $600 billion. six months later, the estimated cost was $1,200 billion. that kind of thing happens in government, whether dem or repub. . i remember, the chaplain at the hospital where i worked married my wife and i and she said that marriage is a contract between man, woman, and god.

When you are wrong.+5

It's simple The fractional equivalent of 1 can be written as 1/3 + 1/3 + 1/3 Convert that 1/3 into its decimal equivalent of .333 Add .333 + .333 + .333 = .999 .99 + .99 = 1.998 When written this way, 1 + 1 does not always equal 2

When baby makes 3 :)

When you find out that she's a lying whore? ;-)

when 1 man + 1 woman make 1 baby. then 1+1=3.

when one man and one woman marry and become one Wow, that was cheesy.

1 nothing + 1 nothing = 2 nothings? I don't think so. It's still nothing. You have one nothing. Or none rather, or hell, an infinate amount as well!

When one is identifying "types" of symbols rather than "tokens", symbols representing other identified object(s). In the former use here, 1 + 1 = 1. - "Now we dance on 'Sprockets'" [SNL] ;-)

if your number system is fiddled with, I mean the axis, maybe a transform. Walking betwean worlds. They can be connected by trig, or jacobian, or a bricked off set of infinities, like the .99999... thing.