JT
Posts:
1,306
Registered:
4/7/12


Re: Is it me or is it Wolfram?
Posted:
May 10, 2013 3:27 PM


On 10 Maj, 21:24, JT <jonas.thornv...@gmail.com> wrote: > On 10 Maj, 20:04, "Julio Di Egidio" <ju...@diegidio.name> wrote: > > > > > > > > > > > "JT" <jonas.thornv...@gmail.com> wrote in message > > >news:82f721d1c69147fa8428913e49966f62@m7g2000vbf.googlegroups.com... > > > >http://www.wolframalpha.com/input/?i=0.499999999999999999999999999999... > > > > n = 1. > > > 0.49999999999999999999999999999999999999999 = (n/21)/n > > > >http://www.wolframalpha.com/input/?i=%3D%2810000000000000000000000000... > > > > 0.49999999999999999999999999999999999999999=(100000000000000000000000000000000000000000/21)/ > > > 100000000000000000000000000000000000000000 > > > > I do not understand to, can please someone explain why and how wolfram > > > get 1 for the upper calculation, it is obvious using the one below > > > what the solution is? > > > > And if there was two solutions should not Wolfram give them both? What > > > is going on here, i am total newb to math calculators so tell me what > > > is going on? > > > Take the equation k = (n/21)/n, and consider that your k is not fitting > > into a float (most probably they are using doubles, i.e. the 64bit floats, > > but I haven't checked), so k is (apparently) rounded to 0.5. Then, > > depending on how you transform the equation and the exact step at which you > > substitute your value for k, you either get Infinity or 1 (exercise left > > to the reader, or I guess you could just check the stepbystep solution, > > but I haven't). > > > That is how floating point works: you'd rather ideally use > > arbitraryprecision rationals, otherwise, as mentioned already in the > > thread, increase the precision of your floating point numbers. But I do not > > think you can do any of these with Wolfram Alpha. > > > Julio > > No that was not the answer given in any of the primitive math > calculations i did around 9798, but this is the answer from > mathematica and wolfram. > And just one more thing, for all the prostitutes in mathematics go > fuck yourself. > > http://www.youtube.com/watch?v=1SkUxknvRlc > Fuck your kebabhttp://www.youtube.com/watch?v=ndN_5IrPOhc
http://www.youtube.com/watch?v=UqtAaYhhVYQ

