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hank612

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ÎÒûѧ¹ýMatlab, Ö»Êdz¢ÊÔ¿´¿´.
Äã¿ÉÒÔÓÃÈí¼þËã¸ö100»ò500Ïî, ¿´¿´ÏÂÃæ²Â²âÊÇ·ñ³ÉÁ¢:
¶ÔËùÓÐÕýÊýa.

Èç¹ûÕâÊǶԵÄ, ÄÇôÄãÒªÇóµÄ¾ÍÊÇ:
We_must_know. We_will_know.
2Â¥2014-05-03 08:19:48
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hank612

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by hank612 at 2014-05-03 08:19:48
ÎÒûѧ¹ýMatlab, Ö»Êdz¢ÊÔ¿´¿´.
Äã¿ÉÒÔÓÃÈí¼þËã¸ö100»ò500Ïî, ¿´¿´ÏÂÃæ²Â²âÊÇ·ñ³ÉÁ¢:
\sum_{k=0}^{\infty} \frac{\sin \frac{(2k+1)\pi}{a}}{2k+1}=\frac{\pi}{4} =0.785398...¶ÔËùÓÐÕýÊýa.

Èç¹ûÕâÊǶԵÄ, ÄÇ ...

ÎÒ¾ÓÈ»Á¬Fourier¼¶Êý¶¼ÍüÁË¡£¡£¡£¡£

http://www.stewartcalculus.com/d ... FourierSeriesEV.pdf
ÓÐÑϸñÖ¤Ã÷ (Example 1)
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We_must_know. We_will_know.
3Â¥2014-05-03 11:19:59
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