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From: Tadashi Aizawa <aiz@joho.ohara.ac.jp>
Date: Tue, 29 Sep 1998 21:31:35 +0900
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$BAj_7!wBg86>pJs$H$$$$$^$9!#3'$5$s$3$s$P$s$o!*!*(B
$B$3$s$J<ALd$r$3$3$G$7$F$h$$$+$o$+$j$^$;$s$,$*4j$$$7$^$9!#!J!)!)!(!K(B
$B#c8@8l$N%=!<%9$G?t3X4X?t(Bsqrt$B$r;H$$$?$$$N$G$9$,$($i!<$,=P$F$7$^$$$^$9!#(B
FreeBSD$B$N%P!<%8%g%s$O(B2.2.2, 2.2.5, 2.2.7$B$G;n$7$F$_$^$7$?$1$l$IF1$8%(%i!<$,=P$^$9!#(B
$B$d$O$j!"I,MW$J$$$N$G$7$g$&$+!#!J!(!(!K(B
$B%=!<%9$O0J2<$K<($7$^$9(B
------------------------------------------------------
#include <stdio.h>
#include <math.h>

struct zahyo{
        double x;
        double y;
};
main()
{
        struct zahyo a,b;
        double dt;

        a.x=10;
        a.y=20;
        b.x=30;
        b.y=40;

        dt=sqrt((b.x-a.x)*(b.x-a.x) + (b.y-a.y)*(b.y-a.y));
        printf("len=%f\n", dt);
}
-------------------------------------------------
$B%3%s%Q%$%k7k2L$G$9(B
p28c1.c: new file: 20 lines, 236 characters

moon:{4}cc p28c1.c -o p28c1

/var/tmp/cc0044781.o: Undefined symbol `_sqrt' referenced from text segment
moon:{5}
gcc$B$N%t%!!<%8%g%s$O(B2.7.2.1$B$G$9(B
-------------------------------------------
$BBg86>pJs%S%8%M%9@lLg3X9;!!%a%G%#%"DL?.2J!!Aj_7!!Ci(B
e-mail:aiz@joho.ohara.ac.jp
-------------------------------------------------------
                                                                       

----
Tadashi Aizawa  aiz@joho.ohara.ac.jp
