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z=-24.4*X*Y+122.4*X+24.6*Y*sqrt(pai*X)
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"D=[0:3:50];
[x,y]=meshgrid(D);
surf(x,y,122.4*x+24.6*y*sqrt(3.1415926*x)-24.4*x*y)
"
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wayen84(½ð±Ò+1):лл²ÎÓë
wayen84(½ð±Ò+2): ¶àл 2011-01-22 23:33:37
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Originally posted by wayen84 at 2011-01-21 19:35:43:
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z=-24.4*X*Y+122.4*X+24.6*Y*sqrt(pai*X)
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"D=[0:3:50];
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http://muchong.com/bbs/viewthread.php?tid=2821653&fpage=1
3Â¥2011-01-22 15:51:53
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wayen84

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4Â¥2011-01-22 23:34:42
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wayen84

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-24.4*x*y
±ÈÈçÎÒÏë¸Ä±äÕâ¸ö24.4µÄÊýÖµ£¬È»ºó»á»ñµÃ·åֵλÖò»Í¬µÄÇúÃæ£¬ÄÇôÎÒÄܲ»Äܽ«ÕâЩÇúÃæ·ÅÔÚÒ»ÆðÀ´ÏòÈËչʾ·åÖµµÄ±ä»¯ÄØ£¬»òÕßÔÚzÉϼÓÒ»¸öÊýÖµ£¬½«ËûÃÇ×ÝÏò·Ö¿ªÒ²¿ÉÒÔ£¬µ«ÊÇÎÒ¾ÍÊÇû·¨ÔÚÒ»ÕÅͼÀï·ÅÁ½¸öÇúÃæ£¬ÄÜÇë½ÌϸÃÔõô×öô¡£
5Â¥2011-01-22 23:36:45
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xiegangmai

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wayen84(½ð±Ò+2): Ì«¸øÁ¦ÁË£¬¶àл 2011-01-23 11:05:08
ÒýÓûØÌû:
Originally posted by wayen84 at 2011-01-22 23:34:42:
ÈçºÎ½«¶à¸öÈýάͼÏñ·ÅÔÚÒ»ÕÅͼÀºÃÏñµþÔÚÒ»¿éÄÇÖÖ£¬ÎÒÊÔ¹ý£¬Èç¹û¶¨ÒåÒ»¸öD£¬Ò»¸öE£¬ºÃÏñÊÇûÓõÄѽ£¬ÄܸæËßÎÒÔõô×öô

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CODE:
parameter = 24.4;
D = [ 0 : 3 : 50 ];
[ x, y ] = meshgrid( D );
surf( x, y, 122.4 * x + 24.6 * y .* sqrt( 3.1415926 * x ) - parameter * x .* y, 'FaceColor', [ 1 0 0 ] )

hold on
parameter = 18.3;
surf( x, y, 122.4 * x + 24.6 * y .* sqrt( 3.1415926 * x ) - parameter * x .* y, 'FaceColor', [ 0 1 0 ] )

parameter = 12.2;
surf( x, y, 122.4 * x + 24.6 * y .* sqrt( 3.1415926 * x ) - parameter * x .* y, 'FaceColor', [ 0 0 1 ] )

6Â¥2011-01-23 11:00:05
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