两个命令的区别具体是什么？

tuoni

Bem=@(y,x,z)(1.18*10^5)*(b-x)/(sqrt((a-y)^2+(b-x)^2+(c-z)^2));这是积分方程，
# a5 X) U% g8 s/ d2 ]$ C! p4 D用q = integral3(Bem(y,x,z),-0.015,0.015,-0.015,-0.0065,0,0.01)可以进行运算；
% W- s7 Q3 ~8 P' f! s. D; ?但是用q = triplequad(Bem(y,x,z),-0.015,0.015,-0.015,-0.0065,0,0.01)不能运行，
5 g/ A  O+ Z" t& F0 e1 j$ F显示错误：输入必须为单精度或双精度浮点值。请问两个命令的区别具体是什么？
非常感谢！

leleeda

没什么不能用的啊
2 j+ o$ ]; m7 Z" |8 Z- Za = -2; b = -5; c = -7;
Bem=@(y,x,z) (1.18*10^5).*(b-x)./(sqrt((a-y).^2+(b-x).^2+(c-z).^2));
. S2 t2 n8 _2 H0 zq1 = integral3(Bem,-0.015,0.015,-0.015,-0.0065,0,0.01)
q2 = triplequad(Bem,-0.015,0.015,-0.015,-0.0065,0,0.01)
% y4 d7 y  c0 \% @/ \6 N2 R7 S& M/ }; H4 |

" k% j; B8 J! ~$ n+ yq1 =
& v3 q. }8 ]. x  -0.170025473637909
q2 =
: x3 M  I1 W& F& k# E5 {* F. Q  -0.170025473637909