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gujihao008

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     y=sin2t;(t=1,2,......12) ,

     y=0(t=13,14,.........24);

         y=sin2t;(25,.........36),

         y=0 (t=37,......48)

      ÆäÖÐt±íʾʱ¼ä£¬Ð¡Ê±¡£

   ÎÒÏë±àд1¸öÔµĺ¯Êý½âÎöʽ,¼´y=f£¨t£©£¬£¨t=1£¬2£¬3£¬¡£¡£¡£¡£¡£30*24£©

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stephenliu89

Òø³æ (СÓÐÃûÆø)

¡ï ¡ï
ÓàÔó³É(½ð±Ò+2):лл²ÎÓëÓ¦Öú£¬»¶Ó­³£À´³ÌÐòÓïÑ԰棡 2010-08-28 21:23:22
#include
#include
using namespace std;
double get_y(unsigned int t)
{
       return ((t - 1)/ 12 % 2)? 0.0: sin( 2.0 * t);   //Stephen's solution
}

int main()
{
    int i;
    for ( i = 1;i<=60;i++)
        cout <<"i=" << i <<"y=" << get_y(i) << endl;
   system("pause";
   return 0;
}   

Â¥Ö÷ÄØ£¿¸ø½ð±Ò²»¹þ£¿
Email:stephenliu1989@163.com
4Â¥2010-08-28 13:46:14
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 4 ¸ö»Ø´ð

yalefield

½ð³æ (ÎÄ̳¾«Ó¢)

ÀϺºÒ»Ã¶

¡ï ¡ï
gujihao008(½ð±Ò+1):лл²ÎÓë
ÓàÔó³É(½ð±Ò+1):лл²ÎÓëÓ¦Öú£¡ 2010-08-21 20:01:34
CODE:
double get_y(unsigned int t)
{
        return ((t - 1) % 12 % 2) ? sin (2.0 * t) : 0.0;
}

[ Last edited by yalefield on 2010-8-21 at 20:40 ]
2Â¥2010-08-21 16:55:00
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

stephenliu89

Òø³æ (СÓÐÃûÆø)

¡ï ¡ï
gujihao008(½ð±Ò+1):лл²ÎÓë
ÓàÔó³É(½ð±Ò+1):лл²ÎÓëÓ¦Öú£¡ 2010-08-21 20:01:46
double get_y(unsigned int t)
{

        return ((t-1) / 12 % 2) ?  0.0: sin (2.0 * t);
}

[ Last edited by ÓàÔó³É on 2010-8-21 at 20:02 ]
Email:stephenliu1989@163.com
3Â¥2010-08-21 19:18:52
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