LAPLACE OPERATOR.ppt [Lecture seule]
LAPLACE OPERATOR.ppt [Lecture seule]
LAPLACE OPERATOR.ppt [Lecture seule]
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Laplace operatorThe Laplace operator is defined by:a = 0 a =− 1 a = 0−1,1 0,1 1,1a =− 1 a = 4 a =−1−1,0 0,0 1,0a = 0 a =− 1 a = 0−1, −1 0, −1 1, −1F(jU ,jU ) = −e − e + 4−e −e1 2j∆U j∆U −∆ j U −∆ j U2 1 2 1= 4−2cos∆U −2cos∆U1 2= 2(2−cos∆U −cos∆U)1 2