fwrite and fread data of multiple precision to binary file

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Jab 2018-4-2

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评论： Jab 2018-4-2

采纳的回答： Walter Roberson

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Can anyone help me? fwrite and fread values are different. My trail is given below. i need to only read the sq values.

Thanks

    r=1:100;
    sq= sqrt(r)
    fid = fopen('binary','w'); % Opening the file to write 
    %
    if fid~=1
        fwrite(fid, 8, 'uint8'); 
        fwrite(fid, 'Table',  'char'); 
        fwrite(fid, sq,  'float64');
        fclose(fid);
    end
    fileid = fopen('binary','r');
    if fileid~=1
        equa = fread(fileid, 'float64');
        fclose(fileid);
    end

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Walter Roberson 2018-4-2

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You need to fseek() to skip the first 6 bytes of the file.

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Walter Roberson 2018-4-2

That is fine. fseek returns 0 if the operation succeeded.

Jab 2018-4-2

Thank you! Get the job done

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