So, today just begin to learn matlab, learning in a new video script, played the code
For I=1:
X=linspace (0,10,101);
Plot (x, sin (x + I));
Printf (GCF, '- deps, strcat (' plot', num2str (I), 'ps'));
End

Then he showed this
In addition, I clicked on the script that the fx icon in the edit box, according to the video should be give me a lot of function in the query, the results appeared that

Help bosses what should I do, is to reinstall agghh