两个命令的区别具体是什么？

tuoni

! n8 f8 A- Q7 W! G1 w8 R
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，
. t8 \; F$ {( `( U8 R& F1 N# F用q = integral3(Bem(y,x,z),-0.015,0.015,-0.015,-0.0065,0,0.01)可以进行运算；
) P/ u; V! y/ c% I1 K" 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，
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？
" ?0 v7 U5 T; d8 L! E" j+ @非常感谢！

leleeda

: c* \" X$ _1 \- M没什么不能用的啊
a = -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));
* |2 T- e: S5 A) X  w. a7 b3 _q1 = 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)


# ?) B8 l0 A9 M. k4 `q1 =
6 s5 i: T7 X( y  -0.170025473637909
q2 =
  -0.170025473637909