printf 문에서 소수점 고정 같은건데.. 잘 모르겠습니다 ㅜㅜ..

man 3 printf

   The field width
       An  optional decimal digit string (with nonzero first digit) specifying a minimum field width.  If the converted
       value has fewer characters than the field width, it will be padded with spaces on the left  (or  right,  if  the
       left-adjustment  flag  has  been given).  Instead of a decimal digit string one may write `*' or `*m$' (for some
       decimal integer m) to specify that the field width is given in the next  argument,  or  in  the  m-th  argument,
       respectively,  which  must be of type int.  A negative field width is taken as a `-' flag followed by a positive
       field width.  In no case does a non-existent or small field width cause truncation of a field; if the result  of
       a conversion is wider than the field width, the field is expanded to contain the conversion result.

   The precision
       An  optional precision, in the form of a period (`.')  followed by an optional decimal digit string.  Instead of
       a decimal digit string one may write `*' or `*m$' (for some decimal integer m) to specify that the precision  is
       given  in the next argument, or in the m-th argument, respectively, which must be of type int.  If the precision
       is given as just `.', or the precision is negative, the precision is taken to be zero.  This gives  the  minimum
       number  of digits to appear for d, i, o, u, x, and X conversions, the number of digits to appear after the radix
       character for a, A, e, E, f, and F conversions, the maximum number of significant digits for  g  and  G  conver-
       sions, or the maximum number of characters to be printed from a string for s and S conversions.

       e,E    The  double  argument is rounded and converted in the style [-]d.ddde+-dd where there is one digit before
              the decimal-point character and the number of digits after it is equal to the precision; if the precision
              is missing, it is taken as 6; if the precision is zero, no decimal-point character appears.  An E conver-
              sion uses the letter E (rather than e) to introduce the exponent.  The exponent always contains at  least
              two digits; if the value is zero, the exponent is 00.

음. %10이면 그 길이에 상관 없이 field width를 정해준 것 같고

e는 위와 같습니다~

덧. 그냥 쉘에서 복사해서 붙였더니 길이가 애매하네요 -o-

http://man.kldp.org/wiki/FrontPage?action=GetManPage&lang=ko&man=printf&sec=3

여기 보면, 번역은 되어있지 않은데 보기 더 편하실 것 같습니다.

번역된 것 없나요? -o-; 한글 man을 안깔아서 모르겠네요;