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2Â¥: Originally posted by wurongjun at 2015-11-17 10:51:13
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4Â¥: Originally posted by wurongjun at 2015-11-17 23:53:53
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5Â¥: Originally posted by wurongjun at 2015-11-18 00:12:51
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%1¡¢º¯Êý¶ÔԭʼÊý¾Ý½øÐжàÏîʽÄâºÏ
x=[7.3 9.7 12.2 14.8 17.7 20.3 22.9 25.4];
y=[25.0 40.0 55.0 85.0 112.0 145.0 190.0 230.0];
p=polyfit(x,y,2);%pÖ»ÊDZíʾϵÊý£¬µ«·½³Ì»¹ÊÇÒò±äÁ¿y¹ØÓÚ×Ô±äÁ¿xµÄº¯Êý

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plot(x,y,'ro',x1,y1,'k','linewidth',2.5)
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plot(x0,y0,'^',x2,y2,'m','linewidth',2.2)
xlabel('xÖá'),ylabel('yÖá±íʾC1(x)'),title('d(x)Êdz£ÊýµÄÆ«ÖÃÇúÏß')
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yueqianxing

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9Â¥: Originally posted by wurongjun at 2015-11-18 22:04:35
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