/prog/ - Floating-point arithmetic recommended reading

Name: Anonymous 2013-06-15 11:26

Hey, listen! Floating-point arithmetic is very dangerous magic! You have got to think before using it! Please read the following before using it carelessly:
http://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html
http://www.cs.berkeley.edu/~wkahan/JAVAhurt.pdf
http://www.yosefk.com/blog/consistency-how-to-defeat-the-purpose-of-ieee-floating-point.html

Thank you!

Name: Anonymous 2013-06-15 11:29

Peace, stud!

Name: Anonymous 2013-06-15 21:03

refaptorings
哈哈

Name: Anonymous 2013-06-15 21:33

Every programmer should be aware of the issues regarding use of floating-point math, but apart from the obvious ones such as not comparing for equality they rarely matter in practice.

Name: Anonymous 2013-06-15 22:20



int a=1;

int b=2;

return (float)a/b

What you gonna do fagget?

Name: Anonymous 2013-06-17 4:39

Have you read your “What Every Computer Scientist Should Know About Floating-Point Arithmetic” and “How Java […] Hurts Everyone Everywhere” today?

Name: Anonymous 2013-06-17 8:57

I find it amusing that OP's last two links seem to have been written in direct argument to each other. Needless to say, I side with all the points of both that make Java look bad, even when they contradict.

Name: Anonymous 2013-06-17 9:20

>>1
Prof. W. Kahan
Are you sure he isn't Jewish?

Name: Anonymous 2013-06-17 9:34

>>1
http://www.cs.berkeley.edu/~wkahan/JAVAhurt.pdf
I get it. Jew Kahan tries to make Java typing like PHP, so more exploits would popup for Mossad to use.

Name: Anonymous 2013-06-17 9:51

>>8
He's jewish.

Name: Anonymous 2013-06-17 9:53

>>10
What about David Goldberg and Yossi Kreinin?

Name: Anonymous 2013-06-17 10:54

>>11
"Kreinin" appears to be a russian name, like Lenin and Stalin.

Name: yeah 2013-06-17 11:01

>>12
Shaloma loma!

Name: Anonymous 2013-06-17 11:09

>>13
How many times do I have to tell you you're not impressing anyone by using random Jewish words you learned while reading your first Hebraic language textbook?

Name: Anonymous 2013-06-17 11:21

begone shitposters!

Name: Anonymous 2013-06-17 11:27

*takes a poop on >>15*

Name: Anonymous 2013-06-17 11:27

>>15
shit a dick, dude

Name: Anonymous 2013-06-17 11:29

Java has rejected even mildly disciplined infix operator overloading, without which extensions to arithmetic with everyday mathematical types like complex numbers, intervals, matrices, geometrical objects and arbitrarily high precision become extremely inconvenient
lel?

Name: Anonymous 2013-06-17 11:32

i wannt kill self :(

Name: Anonymous 2013-06-17 11:46

>>19
because of floating point numbers?

Name: Anonymous 2013-06-17 14:34

>>1
This Krenin asshole looks retarded all around, trying to find excuses for his own lameness...

the term "precision" ... means "accuracy" as you defined it in a lot of informal discussions (including this article except for the comments mentioning the word "accuracy")

Name: Anonymous 2013-06-17 14:50

floating dubs

Name: Anonymous 2013-06-17 20:33

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Name: Anonymous 2013-06-17 20:38

http://jeremiah.hostingsiteforfree.com/
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Name: Anonymous 2013-06-17 21:17

>>21
He's also got a weird fixation with `debug' and `release' modes. Maybe this is part of some language I don't know about^*, but what the fuck? Is he talking about the difference between -O0 and -O2 or something? If so, just fucking say so! He also takes the `everyone who disagrees with me and has valid points is in a tiny minority, so they can be ignored' argument, which strikes me as a cop-out.

^{* Or maybe he explains it later. I quit once I saw he wasn't going to be as informative as the first two links}

Name: Anonymous 2013-06-17 21:45

>>25
It's a Visual Studios thing.

Name: Anonymous 2013-06-17 22:18

>>26
Ha! No wonder I instinctively hated his guts.

Name: Anonymous 2013-06-17 22:51

>>27
muh Linux muh Stallman muh freedom

Name: Anonymous 2013-06-17 23:13

>>28
Big Eggs.

Name: Anonymous 2013-06-17 23:55

الله أكبر

Name: Anonymous 2013-06-18 0:20

>>28
kill yourself freedom hater

Name: Anonymous 2013-06-18 0:24

>>31
>implying communism is freedom

Name: Anonymous 2013-06-18 1:17

>>32
>implying freedom isn't slavery

Name: Anonymous 2013-06-18 1:18

>>32
You might get a reaction with a weak troll like that on a feminist forum, but not here. Try again.

Name: Anonymous 2013-06-18 7:10

>>32-33
LLLLLLLLLLLLLLLLLLLEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLL >LE IMPLYIN/G/ XDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
E/G/IN MEME REDDIT/G/ROS XDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD LELELELELELELELELLLLLLLLLLLLEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL

Name: Anonymous 2013-06-18 7:13

>>35
your mother should have aborted you.

Name: Anonymous 2013-06-18 8:55

>>36



>mfw le implying XDDD

Name: Anonymous 2013-06-18 10:55

>>36
your mother shouldn't let you go on le re/g/g/it

Floating-point arithmetic recommended reading

1 Name: Anonymous 2013-06-15 11:26

2 Name: Anonymous 2013-06-15 11:29

3 Name: Anonymous 2013-06-15 21:03

4 Name: Anonymous 2013-06-15 21:33

5 Name: Anonymous 2013-06-15 22:20

6 Name: Anonymous 2013-06-17 4:39

7 Name: Anonymous 2013-06-17 8:57

8 Name: Anonymous 2013-06-17 9:20

9 Name: Anonymous 2013-06-17 9:34

10 Name: Anonymous 2013-06-17 9:51

11 Name: Anonymous 2013-06-17 9:53

12 Name: Anonymous 2013-06-17 10:54

13 Name: yeah 2013-06-17 11:01

14 Name: Anonymous 2013-06-17 11:09

15 Name: Anonymous 2013-06-17 11:21

16 Name: Anonymous 2013-06-17 11:27

17 Name: Anonymous 2013-06-17 11:27

18 Name: Anonymous 2013-06-17 11:29

19 Name: Anonymous 2013-06-17 11:32

20 Name: Anonymous 2013-06-17 11:46

21 Name: Anonymous 2013-06-17 14:34

22 Name: Anonymous 2013-06-17 14:50

23 Name: Anonymous 2013-06-17 20:33

24 Name: Anonymous 2013-06-17 20:38

25 Name: Anonymous 2013-06-17 21:17

26 Name: Anonymous 2013-06-17 21:45

27 Name: Anonymous 2013-06-17 22:18

28 Name: Anonymous 2013-06-17 22:51

29 Name: Anonymous 2013-06-17 23:13

30 Name: Anonymous 2013-06-17 23:55

31 Name: Anonymous 2013-06-18 0:20

32 Name: Anonymous 2013-06-18 0:24

33 Name: Anonymous 2013-06-18 1:17

34 Name: Anonymous 2013-06-18 1:18

35 Name: Anonymous 2013-06-18 7:10

36 Name: Anonymous 2013-06-18 7:13

37 Name: Anonymous 2013-06-18 8:55

38 Name: Anonymous 2013-06-18 10:55

Name: Anonymous 2013-06-15 11:26

Name: Anonymous 2013-06-15 11:29

Name: Anonymous 2013-06-15 21:03

Name: Anonymous 2013-06-15 21:33

Name: Anonymous 2013-06-15 22:20

Name: Anonymous 2013-06-17 4:39

Name: Anonymous 2013-06-17 8:57

Name: Anonymous 2013-06-17 9:20

Name: Anonymous 2013-06-17 9:34

Name: Anonymous 2013-06-17 9:51

Name: Anonymous 2013-06-17 9:53

Name: Anonymous 2013-06-17 10:54

Name: yeah 2013-06-17 11:01

Name: Anonymous 2013-06-17 11:09

Name: Anonymous 2013-06-17 11:21

Name: Anonymous 2013-06-17 11:27

Name: Anonymous 2013-06-17 11:27

Name: Anonymous 2013-06-17 11:29

Name: Anonymous 2013-06-17 11:32

Name: Anonymous 2013-06-17 11:46

Name: Anonymous 2013-06-17 14:34

Name: Anonymous 2013-06-17 14:50

Name: Anonymous 2013-06-17 20:33

Name: Anonymous 2013-06-17 20:38

Name: Anonymous 2013-06-17 21:17

Name: Anonymous 2013-06-17 21:45

Name: Anonymous 2013-06-17 22:18

Name: Anonymous 2013-06-17 22:51

Name: Anonymous 2013-06-17 23:13

Name: Anonymous 2013-06-17 23:55

Name: Anonymous 2013-06-18 0:20

Name: Anonymous 2013-06-18 0:24

Name: Anonymous 2013-06-18 1:17

Name: Anonymous 2013-06-18 1:18

Name: Anonymous 2013-06-18 7:10

Name: Anonymous 2013-06-18 7:13

Name: Anonymous 2013-06-18 8:55

Name: Anonymous 2013-06-18 10:55