Using matlab simple draw curves, and labeling, the legend, the screen grid, and other operations

Using matlab simple draw curves, and labeling, the legend, the screen grid, and other operations

Tools / materials

• matlab software

Method / Step

1. I used r2012 version is now simply draw two curves, a sine, cosine a different line widths, named curve. Procedures are as follows:

   x = 0: 0.001: 2 * pi;% create a time series

   y1 = 0.5 * sin (x);% creates sinusoidal

   y2 = cos (x);% create cosine curve

   % Corresponding to the width painting

   plot(x,y1,'r','LineWidth',0.5);

   hold on;

   plot(x,y2,'b','LineWidth',1);

   axis ([0 2 * pi -1 1]);

   % Curved axis title

   title ( 'profile');

   
2. The curve text annotation, I was just looking for two points on the curve, application text function:

   text (pi, 0, '\ leftarrow sine');

   text (pi / 2,0, '\ leftarrow cosine');

   
3. Obtaining maximum point of the curve to a curve as an example:

   [a2,b2]=max(y2);

   plot(x(b2),a2,'r*');

   text (x (b2), a2, 'maximum point curve 2');

   
4. Two exemplary curves of legend, and to join the grid. "

   Legend% plus

   Legend ( 'curve 1' 'curve 2');

   % Plus grid

   grid on;

   
5.