带边界条件的四阶微分方程符号解

cbsz

syms x z A B C D
# h" q7 @$ `. a  p5 ]' nDSolve[x''''[z] == -Azx[z], x''[0] = B, x''[D] = C, x'''[0] = 0, x'''[D] = 0]
第二行的格式应该怎么写？
Z是X的变量，求X的符号解
- p8 {% g- ?5 k% {* C3 b

cbsz

自己回答下，DSolve[{x''''[z] == -Azx[z], x''[0] == B, x''[d] == 0, x'''[0] == C, x'''[d] == 0}, x, z]
; ^  e! ?. W" x6 l  `* o' U  C

cbsz

自己回答下，DSolve[{x''''[z] == -Azx[z], x''[0] == B, x''[d] == 0, x'''[0] == C, x'''[d] == 0}, x, z]