How to find 0.1111111111111……? The method is 1/9. Then, what about 0.222222222222……? It is (1/9)*2 = 2/9. By analogy, 8/9 = 0.888888888888888888888888……. Okay, here comes the problem. How do I get 0.999999999999999999999999……………………? (1/9)*9? How does it become 1? Is it because 0.9999…… is infinitely close to 1? Can anyone give an explanation?
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中国DOS联盟论坛 » 贴图灌水、文学娱乐专区 » Is 1 equal to 0.9999999……?
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Posted 2008-09-21 08:22 · 中国 广东 揭阳 电信
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Posted 2008-09-21 08:24 · 中国 山东 淄博 联通
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What calculator are you using? The built-in calculator?
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Posted 2008-09-21 08:27 · 中国 广东 揭阳 电信
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Floor 4
Posted 2008-09-21 23:13 · 中国 广东 深圳 龙岗区 电信
It seems calculated by Windows Calculator
Floor 5
Posted 2008-09-24 10:50 · 中国 浙江 绍兴 电信
3 = (1/3) * 3 = 0.33333333.... * 3 = 0.99999999999....
Understood?
Understood?
Floor 6
Posted 2008-09-24 15:36 · 美国 惠普HP
What calculator are you using, LZ?
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Posted 2008-09-29 16:55 · 中国 广东 揭阳 电信
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Posted 2008-09-29 19:44 · 中国 上海 浦东新区 电信
Has the landlord studied advanced mathematics?
The limit concept in the beginning of advanced mathematics (usually the first chapter) can solve the landlord's doubts.
The limit concept in the beginning of advanced mathematics (usually the first chapter) can solve the landlord's doubts.
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Posted 2008-09-30 08:03 · 中国 广东 揭阳 电信
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Posted 2008-10-02 19:53 · 中国 上海 电信
Originally 1 is equal to 0.99999999999999…… (infinite 9s)
Take a look at the limit in advanced mathematics
Take a look at the limit in advanced mathematics
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Posted 2008-10-03 11:00 · 中国 福建 三明 电信
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Advanced mathematics. Haven't looked at it for a long time. Forgotten. orz
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Floor 12
Posted 2008-10-04 00:12 · 中国 上海 浦东新区 电信
What has been said in Advanced Mathematics Volume 1 is very clear
Floor 13
Posted 2008-10-05 16:06 · 中国 浙江 宁波 余姚市 电信
The building host explains like this is what is commonly called taking things for granted
Floor 14
Posted 2008-10-06 00:48 · 中国 湖南 常德 电信
The landlord is pretty good, very studious...
This kind of problem is not easy to think of, just like for thousands of years, no one asked why apples fall──Knowing the answer doesn't mean being smart, sometimes asking questions is also a kind of wisdom...
Come on...
This kind of problem is not easy to think of, just like for thousands of years, no one asked why apples fall──Knowing the answer doesn't mean being smart, sometimes asking questions is also a kind of wisdom...
Come on...
Floor 15
Posted 2008-10-20 03:58 · 中国 河南 郑州 联通
This is not difficult. Look here. It mainly depends on whether you can accept this reality.
1 = 9/9 = 9*(1/9) = 9*0.111111... = 0.99999.......
Or
1 - 0.9.... = 0 => 1 = 0.99999. Because it is an infinite cycle, so you won't get a 1 with many digits after the decimal point.
Both can prove this problem, right?
1 = 9/9 = 9*(1/9) = 9*0.111111... = 0.99999.......
Or
1 - 0.9.... = 0 => 1 = 0.99999. Because it is an infinite cycle, so you won't get a 1 with many digits after the decimal point.
Both can prove this problem, right?
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