Matlab u(x,t)=sin(5pix)cos(5pit)+2sin(7pix)cos(7pit)

来源：学生作业帮编辑：拍题作业网作业帮分类：数学作业时间：2024/04/28 03:58:46

Matlab
u(x,t)=sin(5*pi*x)cos(5*pi*t)+2sin(7*pi*x)cos(7*pi*t) 其中0

我刚刚编写的,调试过了没问题.给高点分啊.下次还可以问我.
clear all;
clc;
syms x
figure(1);
for t=[0 0.1 0.2]
u_x_t=sin(5*pi*x)*cos(5*pi*t)+2*sin(7*pi*x)*cos(7*pi*t);
ezplot(u_x_t,[0,1]);
hold on;
end
figure(2);
for t=0:0.01:2
u_x_t=sin(5*pi*x)*cos(5*pi*t)+2*sin(7*pi*x)*cos(7*pi*t);
ezplot(u_x_t,[0,1]);
hold on;
pause(0.01);
end

Matlab u(x,t)=sin(5*pi*x)cos(5*pi*t)+2sin(7*pi*x)cos(7*pi*t) x=4*sin(2*pi*0.01*t).*sin(2*pi*3*t)+2*cos(pi*t*t/4);在matlab中 x(t)=cos(2*pi*5*t)+cos(2*pi*10*t)+cos(2*pi*20*t)+cos(2*pi*50 matlaB函数问题t = -pi:0.01:pi;x=cos(t)-sin(3*t);y=sin(t)+cos(t); t=0:pi/100:10*pi; x=2*(cos(t)+t*sin(t)); y=2*(sin(t)-t*cos(t matlab中t=linspace(0,2*pi,100);x=[t;t]';y=[sin(t);cos(t)]';pl matlab中问题：x = A1 * sin(2 * pi * f1 * t) + A2 * sin(2 * pi * MATLAB求助,用FFT直接计算x=cos(2*pi*40*t)+2sin(2*pi*120*t)+w(t)的功率谱. 已知函数f（x）=cos（2x-pi/3）+2sin（x-pi)*sin(x+pi/4) 出处 h=2*pi/100;t=0:h:2*pi;r=0:0.05:1;x=r'*cos(t);y=r'*sin(t); 若sin((pi/6)+x)=1/3,则cos((pi/3-x)=?cos((2pi/3)+x)=? MATLAB中 y=cos(2*pi*100*t);s=sin(4*pi*t);是什么意思啊?