推 hmichellesa :謝謝h大幫忙.....(貴人) 08/30 17:14
推 Heaviside :偷推一下h大！ 08/30 23:19
※ 引述《hmichellesa (mim)》之銘言：
: 1.show that the differential equation has a regular singular point about z=0
z^2y"+zy'+(z^2-v^2)y=0
: 謝謝各位大大幫忙X-(
z^2 = 0 => z = 0
(z-0)z
------- = 1
z^2
(z-0)^2 (z^2 - v^2)
------------------- = z^2 - v^2 當在z=0處 nonsingular
z^2
所以z = 0是 regular singular point
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 128.220.144.133