data generation from given

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AKHILESH KUMAR
AKHILESH KUMAR 2017-1-27
回答： Sergey Kasyanov 2017-1-27
given a function y(t)=10*sin(200t)+20*cos(200t^2). i want to generate, save, load and plot the data.

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回答（1 个）

Sergey Kasyanov
Sergey Kasyanov 2017-1-27
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);

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