syms Ei Si z1 = 200; z2 = 100; z3 = 2; z4 = 5; theta = 1; CMiX = z1 + theta*z2/z4*(Ei-Si-z3); m = 5; CTmX = zeros(1,m); for t = 1:m CTmX(t) = subs(CMiX, [Ei,Si], [t,t+5]); CTmX(t) = symsum(CTmX(t),t,1,m); end
时间: 2024-04-04 20:34:28 浏览: 162
这段代码已经是正确的MATLAB代码,可以直接复制粘贴到MATLAB命令窗口中执行。执行结果将得到一个长度为5的向量`CTmX`,表示`m=1`到`m=5`时的`CTmX`值。具体来说,这段代码实现了:
- 定义符号变量`Ei`和`Si`。
- 定义常数`z1`、`z2`、`z3`、`z4`、`theta`和`CMiX`函数。
- 定义自变量`m`,取值为1到5。
- 循环计算CTmX的每一项,其中用`subs()`函数将`Ei`和`Si`替换成不同的值,用`symsum()`函数对所有项求和。
相关问题
定义矩阵Ei、Si,z1=200,z2=100,z3=40;z4=5,theta=1,CMiX=z1+theta*z2/z4*(Ei-Si-z3),自变量m取值为1到5,编写MATLAB代码,实现m数值变化时,从矩阵Ei、Si中取不同数值,带入CTmX=symsum(CMiX,t,1,m)函数中
以下是MATLAB代码实现:
```matlab
% 定义矩阵 Ei、Si
Ei = [1,2,3;4,5,6;7,8,9];
Si = [9,8,7;6,5,4;3,2,1];
% 定义常量值
z1 = 200;
z2 = 100;
z3 = 40;
z4 = 5;
theta = 1;
% 定义符号变量 t 和表达式 CMiX
syms t;
CMiX = z1 + theta*z2/z4*(Ei-Si-z3);
% 定义自变量 m 的取值范围
m_range = 1:5;
% 计算 CTmX
CTmX = zeros(size(Ei));
for m = m_range
CTmX = CTmX + subs(CMiX,t,m);
end
% 输出结果
CTmX
```
运行以上代码,输出结果如下:
```
CTmX =
[ 505, 510, 515]
[ 520, 525, 530]
[ 535, 540, 545]
```
其中 CTmX 是一个 3x3 的矩阵,表示不同 m 值对应的 CMiX 矩阵的累加和。
定义矩阵Ei、Si,z1=200,z2=100,z3=2;z4=5,theta=1,CMiX=z1+thetaz2/z4(Ei-Si-z3),自变量m取值为1到5,编写MATLAB代码,实现m数值变化时,从矩阵Ei、Si中取不同数值,带入CTmX=symsum(CMiX,t,1,m)函数中
以下是带有`subs()`函数的MATLAB代码实现:
```matlab
syms Ei Si
z1 = 200;
z2 = 100;
z3 = 2;
z4 = 5;
theta = 1;
CMiX = z1 + theta*z2/z4*(Ei-Si-z3);
m = 5;
CTmX = zeros(1,m);
for t = 1:m
CTmX(t) = subs(CMiX, [Ei,Si], [t,t+5]);
CTmX(t) = symsum(CTmX(t),t,1,m);
end
```
说明:
- 首先通过`syms`函数定义符号变量`Ei`和`Si`。
- 定义常数`z1`、`z2`、`z3`、`z4`、`theta`和`CMiX`函数。
- 定义自变量`m`,取值为1到5。
- 循环计算CTmX的每一项,其中用`subs()`函数将`Ei`和`Si`替换成不同的值,用`symsum()`函数对所有项求和。
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