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xlt1994

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001gqs

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xlt1994: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2016-07-30 15:58:54
f(x)=o(g(x)) (x-->x_0)±íʾ
|f(x)/g(x)|-->0 µ±x-->x_0.

f(x)=O(g(x)) (x-->x_0)±íʾ´æÔÚ³£ÊýC>0.
µ±x-->x_0ʱ£¬|f(x)/g(x)|<=Cºã³ÉÁ¢.

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sin£¨x£©Óн磬µ«Êǵ±x-->inftyʱºò£¬¼«ÏÞ²»´æÔÚ£¬Òò´Ë
sin£¨x£©ÊÇO(1)£¬¶ø²»ÊÇo£¨1£©.
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2Â¥2016-07-29 20:37:24
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xlt1994

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by 001gqs at 2016-07-29 20:37:24
f(x)=o(g(x)) (x-->x_0)±íʾ
|f(x)/g(x)|-->0 µ±x-->x_0.

f(x)=O(g(x)) (x-->x_0)±íʾ´æÔÚ³£ÊýC>0.
µ±x-->x_0ʱ£¬|f(x)/g(x)|<=Cºã³ÉÁ¢.

Òò´Ëo implies O£¬µ«·´¹ýÀ´²»¶Ô£¬
sin£¨x£©ÓÐ ...

inftyÊÇʲôÒâ˼£¬ÄܾٸöÀý×Óo implies O

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3Â¥2016-07-30 15:21:21
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xlt1994

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by 001gqs at 2016-07-29 20:37:24
f(x)=o(g(x)) (x-->x_0)±íʾ
|f(x)/g(x)|-->0 µ±x-->x_0.

f(x)=O(g(x)) (x-->x_0)±íʾ´æÔÚ³£ÊýC>0.
µ±x-->x_0ʱ£¬|f(x)/g(x)|<=Cºã³ÉÁ¢.

Òò´Ëo implies O£¬µ«·´¹ýÀ´²»¶Ô£¬
sin£¨x£©ÓÐ ...

ÎÒÃ÷°×ÁË£¬ÊÇÎҰѸÅÄîŪ´íÁË£¬µ«inftyÊÇʲôÒâ˼

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4Â¥2016-07-30 15:58:25
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001gqs

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by xlt1994 at 2016-07-30 15:58:25
ÎÒÃ÷°×ÁË£¬ÊÇÎҰѸÅÄîŪ´íÁË£¬µ«inftyÊÇʲôÒâ˼
...

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5Â¥2016-07-31 11:28:12
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xuhuilin

½û³æ (ÖøÃûдÊÖ)

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6Â¥2016-08-01 09:00:57
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xuhuilin

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7Â¥2016-08-01 09:04:21
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xlt1994

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
7Â¥: Originally posted by xuhuilin at 2016-08-01 09:04:21
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