题目
(1)
x=0:24; y=[15 14 14 14 14 15 16 18 20 22 23 25 28 31 32 31 29 27 25 24 22 20 18 17 16]; plot(x,y);
(2)方法一(matlab和电脑端打开内容形状都一样)
x=[0:24]; y=[15 14 14 14 14 15 16 18 20 22 23 25 28 31 32 31 29 27 25 24 22 20 18 17 16]; z=[x;y]; dlmwrite(\'气温.txt\',z,\'newline\',\'pc\');
方法二(matlab打开没问题,电脑端打开的空格符是“口”形状)
x=[0:24]; y=[15 14 14 14 14 15 16 18 20 22 23 25 28 31 32 31 29 27 25 24 22 20 18 17 16]; z=[x;y]; dlmwrite(\'气温.txt\',z,\'delimiter\',\'\b\');
(1)
%plot x=-2:0.01:2; y=x.^2.*sin(x.^2-x-2); plot(x,y); %fplot fplot(@(x)x.^2.*sin(x.^2-x-2),[-2,2]);
(2)
t=linspace(0,2*pi,1000); x=2*sin(t); y=3*cos(t); plot(x,y);grid on;
(3)
x=linspace(-3+eps,3-eps,1000); y=linspace(-3+eps,3-eps,1000); [X,Y]=meshgrid(x,y); z=X.^2+Y.^2; mesh(X,Y,z);grid on;
(5)
t=linspace(0+eps,2*pi-eps,1000); x=sin(t); y=cos(t); z=cos(2*t); plot3(x,y,z);grid on;
(6)
x=linspace(0+eps,pi-eps,1000); y1=sin(x); y2=sin(x).*sin(10*x); y3=-sin(x); plot3(y1,y2,y3);grid on;
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