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Ñþ-Kevin

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asmeng

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function g = G_sigma_xy( x,y,p )
sigma = ceil(p/3);
if abs(x)==abs(y)
    g = -exp((-x*x-y*y)/(2*sigma*sigma));
else
    g = 0;
end
2Â¥2014-05-01 16:32:26
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ñþ-Kevin

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by asmeng at 2014-05-01 16:32:26
function g = G_sigma_xy( x,y,p )
sigma = ceil(p/3);
if abs(x)==abs(y)
    g = -exp((-x*x-y*y)/(2*sigma*sigma));
else
    g = 0;
end

ÎÒÒ²ÊÇÕâÑùд£¬ºóÀ´µÃµ½µÄ½á¹û¶¼ÊÇ0.µÃ²»µ½ÏëÒªµÄº¯Êý£¬Äã¾õµÃÄØ£¿
Ö»ÓÐÆ«Ö´¿ñ²ÅÄÜÉú´æ£¡
3Â¥2014-05-04 19:23:29
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

asmeng

½ð³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
3Â¥: Originally posted by Ñþ-Kevin at 2014-05-04 19:23:29
ÎÒÒ²ÊÇÕâÑùд£¬ºóÀ´µÃµ½µÄ½á¹û¶¼ÊÇ0.µÃ²»µ½ÏëÒªµÄº¯Êý£¬Äã¾õµÃÄØ£¿...

²»»á°É¡£ÎÒÊÔ¹ý£¬ÄãÊÔÊÔG_sigma_xy(2,-2,1).
>> G_sigma_xy(2,-2,1)
ans =
       -0.0183156388887342
4Â¥2014-05-04 19:37:29
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ñþ-Kevin

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by asmeng at 2014-05-04 19:37:29
²»»á°É¡£ÎÒÊÔ¹ý£¬ÄãÊÔÊÔG_sigma_xy(2,-2,1).
>> G_sigma_xy(2,-2,1)
ans =
       -0.0183156388887342...

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