How to avoid e+ notation when using fprintf to print to a file

Hi,

I am having trouble having matlab avoid using the +e notation when trying to print a number to a txt file. Here is my code:

fid_hex = fopen('result_hex.txt','r');

fid_dec = fopen('result_dec.txt','w');

while ~feof(fid_hex)

    hex_val = fgets(fid_hex);
    dec_val = hex2dec(hex_val);
    fprintf(fid_dec ,'%d\n',uint32(dec_val));
    disp(uint32(dec_val));
end;

The disp works fine and Matlab outputs the decimal value in the exact format that I want but the fprintf simply doesn't. Any ideas how to format the fprintf to avoid the e+?

uint32(hex2dec('F4CF2F5F')) = 4107218783

I want Matlab to write 4107218783 to the file; not 4.107219e+009

Thanks!

[Walter Roberson]

Note: as you are using text files, you should use 'rt' and 'wt' instead of 'r' and 'w' for your fopen()'s.

Answer 1

[Jeffrey]

anyway... i resorted to using %.0f and it worked.. thanks for all of your help..

fprintf(1,'%.0f\n',uint32(4107218783))

Answer 2

[Fangjun Jiang]

fprintf(1,'%ld\n',4107218783)

doc sprintf

[Jeffrey]

I ran this and it didn't work..

Answer 3

[Walter Roberson]

fprintf(fid_dec ,'%ld\n',uint32(dec_val));

Notice the 'l' (lower-case L) before the 'd': it needs to be used for values greater than 2^31-1

[Jeffrey]

the l before the d doesn't seem to work...

[Walter Roberson]

Tested fine for me:

>> sprintf('%ld\n',uint32(hex2dec('F4CF2F5F')))

ans =

4107218783

Fangjun Jiang's answer worked fine for me as well.

Which MATLAB version are you using? Are you using an early version 5 release perhaps?