Recent Comments
  • By taylor in Some math fails: But 50% = 0.5:I'd say that 0.75 + 0.5 - 0.5 = 0.75 read in context
  • By jcoelho in LaTeX difficulty graphs: wait, the graphs contradict each other... i agree with the 1st one though. i also use latex for everything. read in context
  • By jcoelho in Don't get fooled, do the math before you buy: wow, i thought this only happened in brazil... read in context
  • By Al in Some math fails and some math wins: The first one is not a fail, it's a genuine question; the answer really is 14 unless you put brackets around the 2+3 bit. Then it's 20. That had me confused for ages as well until I learnt what BODMAS meant. read in context
  • By Jesticles in Never divide by zero... Ever!: haha,, i dont get it? whats up with dividing by zero? wow im a stupid sophmore :/ read in context
  • By Joshua Zucker in Some math fails and some math wins: http://www.google.com/search?sourceid=chrome&ie=UTF-8&q=2000000000000000000002-2000000000000000000001 works to give 0 instead of 1. You just need enough 0s. The Yahoo one is fine, in the sense that order of operations is arbitrary, but not fine in the sense that someone could be a math grad student and not have learned that. Also the "i've been researching for two days" makes it a lot more pitiable. read in context
  • By Daniel in Applications of math: Hey, where is the differencial on the batman math? It is like trying to caluclate int x without the dx, pointless. read in context
  • By Bryan Lee Williams in Some math fails and some math wins: I put into Google: 200000000000002-200000000000001 and got 200 000 000 000 002 - 200 000 000 000 001 = 1 That Yahoo question just makes me pity those people. read in context
  • By Joshua Zucker in Some math fails and some math wins: On the Google one, I can get the rounding error but not the mysterious replacement of 2s with 5s? read in context
  • By Joshua Zucker in Chauffeur math fail: Now we all have Anita's phone number. I hope she isn't getting too many calls. read in context
  • By Míquei in Chauffeur math fail: In what base is he paying? read in context
  • By chas simmons in What's 9 and 5?: The turtle says "and", not "plus". Bit-wise "and" of 9 and 5 is 1: 1001 & 101 == 1 read in context
  • By pku in Fields medal 2010: I have to give Lindenstrauss credit, he spent six years in the army, which means he probably only started his master's when he was 27 years old. (Also he's from my university, and the first Israeli to win a fields medal, so there's faculty pride). read in context
  • By Bryan Lee Williams in Adding temperatures: I would actually make more sense to compute 0 degrees Celsius + 0 Celsius degrees degrees Celsius = an actual temperature Celsius degrees = the amount of temperature change between the ticks on the Celsius scale read in context
  • By Joshua Zucker in Meth parody advertisements: Shouldn't the math scribbles include a nice 1/sqrt(2pi) * e^(-x^2 / 2)? read in context
  • By luneth in Tower Stack game strategy (aka tower bricks, tower blocks): thank you so much for this entry. I tried to figure out a formula for this compley for such a long time.. read in context
  • By Ruud in Binary Joke: Every positional numeral system has base 10. read in context
  • By Justme8800 in Binary Joke: Since when is there a numeral "3" in trinary? Does this make you a member of the second group? read in context
  • By Romain in Binary Joke: I prefer this one : There are only 10 types of people in the world : those who understand binary, those who don’t, and those who understand gray code. read in context
  • By Sam in Pythagorean theorem fail: It almost adds up. He probably has a pivot through the centerpiece behind the triangle. read in context
  • By Sam in Bullseye optical illusion: What's wrong with that? 5^2-4^2=25-16=9. At most, the artist could be faulted for not putting a dot in the inner circle. The blue circle has a radius of 3 (pi*3^2 =9pi). The red circle has a total radius of 5, and is missing a circle with a radius of 4 (pi*5^2-pi*4^2=25pi-16pi=9pi). read in context
  • By Sam in Pi fail: The number posted is 22/7, which was one of the earliest approximations of pi. read in context
  • By lily in Pi fail: the "pi ...[is] not an accurate figure" made me cringe. why do do people do that? read in context
  • By djcinsb in Pi fail: Shoot, my calculator is only good to 3 digits. read in context
  • By Guy in Pythagorean theorem fail: Not quite, in the second picture, the water levels don't add up, so they can't be connected. It's more likely that they messed up when building that thing, like having the big square be slightly thinner than the other two.yyy read in context
  • By laptop comparison in In the glossary of a programming textbook: stack overflow: see infinite loop and recursive simultaneously read in context
  • By Bryan Lee Williams in Pythagorean theorem fail: He did not make the squares wrong. He made an experiment that doesn't mean anything. Because the triangle is not translucent, you don't see the fluid behind it which it obviously is. The area of the fluid for this experiment to be able to cover both the a^2 and b^2 areas is actually a^2 + b^2 plus ab/2. So when filling the c^2 area, there is ab/2 fliud left over. read in context
  • By Janis in Pythagorean theorem fail: That`s impossible! Only explanation - he made those squares wrong! read in context
  • By ーー in Significant? No.: http://h0lm.deviantart.com/art/reality-166238626 Via TinEye. read in context