给以下代码加功能输出w1与x的函数图像:clear all; clc; L1 = 50; L2 = 5; L3 = 38; L4 = 4; L5 = 2.3; L6 = 13.7; q2 = 22.7e6; ky2 = 3e9; k1 = 10e9; k2 = 4.7e9; k3 = 9e9; E = 22e9; I = 39.2; alpha = 4*sqrt((ky2)/(4*E*I)); beta = 4*sqrt((k3)/(4*E*I)); lamda = 4*sqrt((k2)/(4*E*I)); syms A1 B1 C1 D1 x w1(x) =(q2/ky2)+ exp(-alpha*x).*(A1*cos(alpha*x)+B1*sin(alpha*x))+exp(alpha*x).*(C1*cos(alpha*x)+D1*sin(alpha*x)); dw1(x) = diff(w1,x); ddw1(x) = diff(dw1,x,2); dddw1(x) = diff(ddw1,x,3); eq1 = w1(0)==0; eq2 = dw1(0)==0; eq3 = ddw1(L1)==0; eq4 = dddw1(L1)==0; s = solve(eq1,eq2,eq3,eq4);
时间: 2023-11-26 10:05:11 浏览: 31
可以使用 MATLAB 的 plot 函数来绘制函数图像。具体操作如下:
1. 在代码末尾添加以下内容:
```matlab
% 定义 x 范围
x_range = linspace(0, L1, 1000);
% 计算 w1(x)
w1_values = subs(w1, A1, s.A1);
w1_values = subs(w1_values, B1, s.B1);
w1_values = subs(w1_values, C1, s.C1);
w1_values = subs(w1_values, D1, s.D1);
w1_values = double(subs(w1_values, x, x_range));
% 绘制 w1(x) 函数图像
plot(x_range, w1_values);
xlabel('x');
ylabel('w1(x)');
title('Function Plot');
grid on;
```
2. 运行代码,即可绘制出 w1(x) 的函数图像。
完整代码如下:
```matlab
clear all;
clc;
L1 = 50;
L2 = 5;
L3 = 38;
L4 = 4;
L5 = 2.3;
L6 = 13.7;
q2 = 22.7e6;
ky2 = 3e9;
k1 = 10e9;
k2 = 4.7e9;
k3 = 9e9;
E = 22e9;
I = 39.2;
alpha = 4*sqrt((ky2)/(4*E*I));
beta = 4*sqrt((k3)/(4*E*I));
lamda = 4*sqrt((k2)/(4*E*I));
syms A1 B1 C1 D1 x
w1(x) =(q2/ky2)+ exp(-alpha*x).*(A1*cos(alpha*x)+B1*sin(alpha*x))+exp(alpha*x).*(C1*cos(alpha*x)+D1*sin(alpha*x));
dw1(x) = diff(w1,x);
ddw1(x) = diff(dw1,x,2);
dddw1(x) = diff(ddw1,x,3);
eq1 = w1(0)==0;
eq2 = dw1(0)==0;
eq3 = ddw1(L1)==0;
eq4 = dddw1(L1)==0;
s = solve(eq1,eq2,eq3,eq4);
% 定义 x 范围
x_range = linspace(0, L1, 1000);
% 计算 w1(x)
w1_values = subs(w1, A1, s.A1);
w1_values = subs(w1_values, B1, s.B1);
w1_values = subs(w1_values, C1, s.C1);
w1_values = subs(w1_values, D1, s.D1);
w1_values = double(subs(w1_values, x, x_range));
% 绘制 w1(x) 函数图像
plot(x_range, w1_values);
xlabel('x');
ylabel('w1(x)');
title('Function Plot');
grid on;
```