Posted October 25, 2015 Basically, what I'm talking about is something like this" You pick any umber, any one at all. Double it, add 12, divide by 2, then subtract your original number. The answer will always be 6 no matter what number you choose. So what kind of tricks do you guys know? Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/ Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 nine times any number is always going to be a factor of 9 OFF TOPIC: I suggest every poll from now on to have "**CK EA" option instead of "Other" Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341239 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 Basically, what I'm talking about is something like this" You pick any umber, any one at all. Double it, add 12, divide by 2, then subtract your original number. The answer will always be 6 no matter what number you choose. So what kind of tricks do you guys know? These? Intel Core i7-6700K | Corsair H105 | Asus Z170I PRO GAMING | G.Skill TridentZ Series 16GB | 950 PRO 512GB M.2 Asus GeForce GTX 980 Ti 6GB STRIX OC | BitFenix Prodigy (Black/Red) | XFX PRO Black Edition 850W My Build | PCPartPicker | CoC Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341240 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 my number was 1. didnt come as 6. lol Case: NZXT S340 || CPU: i7 4790k || Cooler: Hyper 212 EVO || GPU: GTX 770 || Mobo: Z97 PC Mate || Storage: 240GB Sandisk Extreme Pro || RAM: 4x4GB 1333mHz Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341242 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 Pick a number Square it Divide it by the original number Subtract the original number Congratulations, you've arrived at how much I care about math! NEW PC build: Blank Heaven minimalist white and black PC Old S340 build log "White Heaven" The "LIGHTCANON" flashlight build log Project AntiRoll (prototype) Custom speaker project Spoiler Ryzen 3950X | AMD Vega Frontier Edition | ASUS X570 Pro WS | Corsair Vengeance LPX 64GB | NZXT H500 | Seasonic Prime Fanless TX-700 | Custom loop | Coolermaster SK630 White | Logitech MX Master 2S | Samsung 980 Pro 1TB + 970 Pro 512GB | Samsung 58" 4k TV | Scarlett 2i4 | 2x AT2020 Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341245 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 my number was 1. didnt come as 6. lol 1 x 2 = 2 2 + 12 = 14 14/2 = 7 7 - 1 = 6 how does that not equal 6 lol Want a good game to play? Check out Shadowrun: http://store.steampowered.com/app/300550/ (runs on literally any hardware) another 12 core / 24 thread senpai... (/. _ .)/ \(. _ .\) Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341249 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 111,111,111 * 111,111,111 = 12345678987654321 EDIT: Not really a trick but sort of mind blowing. 0.9999(repeating) is equal to 1 Intel Core i7-5820K (4.4 GHz) | Gigabyte GTX 970 G1 Gaming | Corsair Vengeance LPX 16GB | 2x 360mm Custom Loop (Noctua iPPC) | ASRock X99 Extreme6 | Samsung 840 EVO 250GB | Fractal Design Define S | Corsair HX750 | Windows 10 | Corsair M65 RGB PRO | Corsair K70 RGB LUX (CherryMX Brown) | Beyerdynamic Custom One Pro & Creative Sound Blaster Z | Nexus 6P (32GB Aluminium) | Check out my setup: Project Kalte Here! Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341261 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 If you have a defined pattern and an odd number of values, you add all your numbers together, and divide by the number of values, you will always get the middle value. Always. Additionally, if you remove the highest value from your set, the new average value will decrease by half of the difference between any two numbers that are next to each other. If you remove the lowest value, the new average value will increase by the same amount. "It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan. "I can explain it to you, but I can't understand it for you" - Edward I. Koch "I didn't die! I performed a tactical reset!" - Apollolol Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341267 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 I am not nearly smart enough for this... Recovering Apple addict ASUS Zephyrus G14 2022 Spoiler CPU: AMD Ryzen 9 6900HS GPU: AMD r680M / RX 6700S RAM: 16GB DDR5 Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341272 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 If you have a defined pattern and an odd number of values, you add all your numbers together, and divide by the number of values, you will always get the middle value. Always. Additionally, if you remove the highest value from your set, the new average value will decrease by half of the difference between any two numbers that are next to each other. If you remove the lowest value, the new average value will increase by the same amount. so basically averaging. Recovering Apple addict ASUS Zephyrus G14 2022 Spoiler CPU: AMD Ryzen 9 6900HS GPU: AMD r680M / RX 6700S RAM: 16GB DDR5 Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341275 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 so basically averaging. Yes, it is averaging, but in order to get the middle value in your set, you must have a defined pattern. "It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan. "I can explain it to you, but I can't understand it for you" - Edward I. Koch "I didn't die! I performed a tactical reset!" - Apollolol Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341279 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 If you square a positive number, and then square root that number, you get the number you started with. Weird stuff, eh? ( ͡° ͜ʖ ͡°) PCPartPicker link: http://pcpartpicker.com/p/R6GTGX Привет товарищ )))) Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341289 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 Yes, it is averaging, but in order to get the middle value in your set, you must have a defined pattern. pretty useful one for the SAT Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341291 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 pretty useful one for the SAT (100, 105, 110) 100+105+110=315 315/3=105. "It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan. "I can explain it to you, but I can't understand it for you" - Edward I. Koch "I didn't die! I performed a tactical reset!" - Apollolol Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341307 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 If you square a number, and then square root that number, you get the number you started with. Weird stuff, eh? ( ͡° ͜ʖ ͡°) Nope, not if x < 0. The sum of all positive integers is -1/12 Basically, what I'm talking about is something like this" You pick any umber, any one at all. Double it, add 12, divide by 2, then subtract your original number. The answer will always be 6 no matter what number you choose. So what kind of tricks do you guys know? (2x+12)/2 - x = x + 6 - x = 6 no shit sherlock this is some 4th grade level algebra Pro Tip: don't use flash when taking pictures of your build; use a longer exposure instead. Prop up your camera with something (preferably a tripod) if necessary. if you use retarded/autistic/etc to mean stupid please gtfo Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341310 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 Author my number was 1. didnt come as 6. lol 1 doubled is 2, 2 + 12 = 14, 14 divided by 2 is 7, subtract your original number which is 1, and you get 6. Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341333 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 25, 2015 Author Also, a cool trick for multiplying 9s and 11s Basically, just use 10. If you're multiplying say 9 x 23, just do 10 x 23 (230) then subtract your original value (23) to get 204 So 9 x 23 = 207 With 11s, you just add it. So 11 x 56 (10 x 56 = 560) 560 - 56 = 504 Basically, 11 x 56 = 504 Easy math to do in your head. Link to comment https://linustechtips.com/topic/473081-know-any-cool-math-tricks/#findComment-6341346 Share on other sites More sharing options... Link to post Share on other sites More sharing options...
