ๆฉข็ๅๆจ็ณปไธ็ Laplace็ฎๅญ็ๅฝขๅผ 1 a/g2930l 9193 au (g19z0 9192g3Laq1( g1 aq1/aq2 g2 aq 3(g30q3 v 4 (-)(ฮป-v)(u-y) (=)โ(a(โS(mx 0 +(x-y)-S()( S(u +(-p)โS(v) v ๅจ้ๅๅ้กไธญ,ๅ้ข่ฎ้ๆณไธ่ฝๆ็จ!๏ฝ ๐ป 2๐ข = 1 ๐1๐2๐3 ๐ ๐๐1 ๐2๐3 ๐1 ๐๐ข ๐๐1 + ๐ ๐๐2 ๐1๐3 ๐2 ๐๐ข ๐๐2 + ๐ ๐๐3 ๐1๐2 ๐3 ๐๐ข ๐๐3 ๏ฝ ๐ป 2๐ข = 4 (๐โ๐)(๐โ๐)(๐โ๐) [ ๐ โ ๐ ๐(๐) ๐ ๐๐ ๐(๐) ๐๐ข ๐๐ + ๐ โ ๐ โ๐ ๐ ๐ ๐๐ โ๐ ๐ ๐๐ข ๐๐ + ๐ โ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐๐ข ๐๐ ] ๏ฝ ๅจ้ๅๅ้กไธญ๏ผๅ้ข่ฎ้ๆณไธ่ฝๆ็จ๏ผ