Fourier Õ¹¿ª --- ½éÉÜ ---

Fourier Õ¹¿ªÊÇÒ»¸öͼÐÎÁ·Ï°.

ÒÑÖªÒ»¸öÒÔ 2 pi ΪÖÜÆÚµÄÖÜÆÚº¯Êý f. ÄãµÄÈÎÎñÊÇÕÒ³öÕâ¸öº¯ÊýµÄ Fourier ¼¶ÊýÕ¹¿ª µÄµÚÒ»ÏîϵÊý.

Äã¿ÉÒÔ×÷¶à´Î³¢ÊÔ. ÿ´Î³¢ÊÔ¶¼¿ÉÒÔ¿´µ½ÄãµÄ``Õ¹¿ªÊ½'' g ÒÔ¼°º¯Êý f µÄÇúÏß. È»ºóÄã¿ÉÒÔÐÞ¸ÄÄãµÄ»Ø´ð, ʹµÃÁ½ÌõÇúÏß¾¡¿ÉÄܽӽü. ÓàÏî f-g µÄÇúÏßÒ²±»»­³ö, ʹÄãÄÜ¿´µ½Îó²î.

Ñ¡ÔñÄãµÄÕ¹¿ªÀàÐÍ : Ancos(nx+pn) ancos(nx)+bnsin(nx)

¾¯¸æ : ¶ÔͬÑùµÄ½×, ÐÎÈç ancos(nx)+bnsin(nx) µÄÕ¹¿ªÊ½±ÈÕñ·ù¼ÓÏàλµÄÐÎʽÀ§Äѵöà.

Ñ¡ÔñÄÑ¶È : ³õѧÕß (1 ½×) ÄÑ (2 ½×) ºÜÄÑ (3 ½×)

±¾Á·Ï°µÄÔ¤±¸ÖªÊ¶ : Èý½Ç, ¼¶Êý, Fourier ¼¶Êý. The most recent version


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