ããèå²å½æ°impulse functionï¼Î´ç¨dirac(x-a)表示ã
ããèå²å½æ°ç®ä»ï¼æ¶åå
被éå½æ°çå¦ä¸æ°å¦
表达å¼f'(t):
ããf'(t)=å¶f(t(k))6(tât(k))(1â2)
ããå
¶ä¸t(k)为å½æ°è¢«éæ ·æ¶å»,6(1)为D[I~C
deltaå½æ°æ称为èå²å½æ°ã