[問題] txt檔案輸出問題
我在主視窗中輸入
x = 1:10;
y = [x; sqrt(x)];
fid = fopen('sqrt.dat', 'w');
fprintf(fid, 'Table of square root:\n');
fprintf(fid, '%2.0f => %10.6f\n',y);
fclose(fid);
type sqrt.dat (源自 張智星 書本)
錯誤顯示:
??? Error using ==> fprintf
Invalid file identifier. Use fopen to generate a valid file
identifier.
試過許多例子,都會有這樣的問題,請問該如何解決?
謝謝!!!
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