02:08 -!- HaraldG_log(n=HaraldG_@217.19.46.22) has joined #maxima 06:37 -!- stw_(n=stw@e176178040.adsl.alicedsl.de) has joined #maxima 07:17 -!- ASau`(n=user@80.250.218.3) has joined #maxima 07:46 -!- Prax01D(n=Prax01D@149.99.96.109) has joined #maxima 08:19 -!- cunzhang(n=chatzill@218.7.43.195) has joined #maxima 13:24 -!- szymon(n=szymon@cbu152.neoplus.adsl.tpnet.pl) has joined #maxima 13:32 -!- Prax01D(n=Prax01D@tor58-23b-94-193.dynamic.rogerstelecom.net) has joined #maxima 14:52 -!- cunzhang(n=chatzill@218.7.43.195) has joined #maxima 16:44 -!- trebor_home(n=trebor@dslb-084-058-242-063.pools.arcor-ip.net) has joined #maxima 19:31 -!- Prax01D(n=Prax01D@149.99.96.106) has joined #maxima 19:41 -!- istefano(n=istefano@65.39.87.25) has left #maxima 20:47 -!- ganymede(n=ganymede@unaffiliated/ganymede) has joined #maxima 20:48 hi, does anyone know how to ask maxima to do all calculations in decimal instead of binary, so don't get binary-to-decimal conversion errors, like 2.99999999 or something like that? 21:30 ganymede: it isn't possible, I'm afraid. 21:31 ASau: can i display the answer in binary, then? 21:33 Why do you want it? 21:33 Well, you will see, say, "10,111111111111111111111". 21:34 So? 21:36 ASau: oh, i thought if i'd see it in binary, then i wouldn't get round-off errors 21:37 ASau: since there is a difference between a number with a repeating decimal, and a number that has a repeating decimal due to base conversion, right? 21:37 Well, there is such a difference. 21:37 But not for integer numbers. 21:38 E. g. 1/5 has finite denotation in decimal and infinite in binary. 21:39 in that case, it should display 1/101 21:39 But that's not the case you want to avoid. 21:40 i can't cook up an example immediately, but sometimes i see things like 2.0000001 or something strange like that 21:40 i'd like to avoid that, and i thought keeping everything in binary would solve that, instead of changing to decimal 21:40 Right. 21:40 That's unavoidable in most cases. 21:41 so i would see 10.0? 21:41 Unless you define your own precision. 21:41 it's because maxima feeds the numbers to the processor as floats and ints? 21:41 Right. 21:41 instead of carrying out the operations as we would on paper, using only ints? 21:42 Sometime it does. 21:42 are there any CAS that do the operations "on paper"? digit-by-digit, as humans would? 21:42 I'm not that fluent in Maxima intrinsics. 21:42 i feel that this would prevent binary conversion errors 21:42 Better learn how to do that in Maxima. 21:42 and do other CAS suffer from such conversion errors? 21:43 I think there is the way. 21:43 That depends on what you're trying to do. 21:43 If you ask CAS to calculate something numerically, it does what you ask. 21:43 And right, Maxima does some numeric stuff. 22:24 by numeric, you mean exact? 22:32 oh, you just mean non-symbolic