data generation from given

given a function y(t)=10*sin(200t)+20*cos(200t^2). i want to generate, save, load and plot the data.

[Sergey Kasyanov]

What format of saved data do you prefer?

Answer 1

[Sergey Kasyanov]

Define t:

 t=[0:1e-3:1e-1];

Define y:

 y=10*sin(200*t)+20*cos(200*t.^2);

Save data:

 %to txt
 fID = fopen('text.txt','w+');
 fprintf(fID,'%f\r\n',t,y);
 fclose(fID)

Load data:

 %from txt
 A = importdata('text.txt');
 t=A(1:length(A)/2);
 y=A(length(A)/2+1:end);

Plot data:

 plot(t,y);