[MATLAB数学相关] Index exceeds matrix dimensions,没有用到下标怎么还会越界呢？ - MATLAB爱好者论坛-LabFans.com

TTT_IOU · 2009-05-29, 13:18

运行没问题的，估计是版本问题！！
ff1='50*z*(z-d)=230.1875*(z^2-r^2)';
ff2='((z-d)*r)^2=29318.942*(z^2-r^2)';
ff3='50*(z-d)*r=22.0345*(z^2-r^2)';
F=solve(ff1,ff2,ff3)
d=F.d
r=F.r
z=F.z
结果为：
F =
d: [5x1 sym]
r: [5x1 sym]
z: [5x1 sym]
d =
d
z
z
1390.2111993592516807379341541957
-1390.2111993592516807379341541957
r =
0.
z
-1.*z
-37.364685547862253969091147479733
37.364685547862253969091147479733
z =
0.
z
z
-390.33713288472815745808475393093
390.33713288472815745808475393093
不知运行结果是否满意，望有帮助！！！

2009-05-29, 13:18	#2
TTT_IOU 普通会员注册日期: 2009-02-22 帖子: 91 声望力: 18	回复: Index exceeds matrix dimensions,没有用到下标怎么还会越界呢？运行没问题的，估计是版本问题！！ ff1='50z(z-d)=230.1875(z^2-r^2)'; ff2='((z-d)r)^2=29318.942(z^2-r^2)'; ff3='50(z-d)r=22.0345(z^2-r^2)'; F=solve(ff1,ff2,ff3) d=F.d r=F.r z=F.z 结果为： F = d: [5x1 sym] r: [5x1 sym] z: [5x1 sym] d = d z z 1390.2111993592516807379341541957 -1390.2111993592516807379341541957 r = 0. z -1.*z -37.364685547862253969091147479733 37.364685547862253969091147479733 z = 0. z z -390.33713288472815745808475393093 390.33713288472815745808475393093 不知运行结果是否满意，望有帮助！！！