代码如下:
>> x = -pi:pi/10:pi;
>> y = tan(sin(x)) - sin(tan(x));
>> figure
plot(x,y,'--bs',...
'LineWidth',2,...
'MarkerSize',10,...
'MarkerFaceColor','b')
>> grid on
注意事项
一、绘制实心圆:
pha=0:pi/20:2*pi;%角度[0,2*pi]
R=2;%半径
x=R*cos(alpha);
y=R*sin(alpha);
plot(x,y,'-')
axis equal
fill(x,y,'r');%用红色填充
二、绘制实心圆点:
plot(1:8,'ro','MarkerFaceColor','r');