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syms t
p1 = 6.6686e-026;
  p2 = -3.0826e-022;
  p3 = 9.509e-020;
  p4 = 2.2472e-015;
  p5 = -6.6142e-012;
  p6 = 9.2298e-009;
  p7 = -7.4026e-006;
  p8 = 0.0035083;
  p9 = -0.94893;
  p10 = 134.87;
  p11 = -7806.5;
E=@(t)14*(p1*t^10+p2*t^9+p3*t^8+p4*t^7+p5*t^6+p6*t^5+p7*t^4+p8*t^3+p9*t^2+p10*t^1+p11);
fplot(E,[216,1300])

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[ Last edited by nono2009 on 2009-9-23 at 21:46 ]
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cloisonne

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6Â¥2009-07-11 18:30:08
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hitzhang

ľ³æ (ÕýʽдÊÖ)

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woshilsh(½ð±Ò+4,VIP+0):¸Ðл£¬ºÇºÇ£¬²»´í£¬Õý½â£¡ 7-11 19:51
monitor2885(½ð±Ò+3,VIP+0): 7-11 20:00
woshilsh(½ð±Ò+3,VIP+0):Â¥Ö÷µÄÁíÍâ½±Àø£¡ 7-11 20:03
kuhailangyu(½ð±Ò+3,VIP+0):ÐÁ¿àÁË£¬·ÂÕæ°æÓÐÄã¸ü¾«²Ê£¡ 7-11 20:09
ÒýÓûØÌû:
Originally posted by monitor2885 at 2009-7-11 10:58:
syms t
p1 = 6.6686e-026;
  p2 = -3.0826e-022;
  p3 = 9.509e-020;
  p4 = 2.2472e-015;
  p5 = -6.6142e-012;
  p6 = 9.2298e-009;
  p7 = -7.4026e-006;
  p8 = 0.0035083;
  p9 = -0.94893;
  p1 ...

>> syms t
p1 = 6.6686e-026;
  p2 = -3.0826e-022;
  p3 = 9.509e-020;
  p4 = 2.2472e-015;
  p5 = -6.6142e-012;
  p6 = 9.2298e-009;
  p7 = -7.4026e-006;
  p8 = 0.0035083;
  p9 = -0.94893;
  p10 = 134.87;
  p11 = -7806.5;
>> E=@(t)14*(p1*t.^10+p2*t.^9+p3*t.^8+p4*t.^7+p5*t.^6+p6*t.^5+p7*t.^4+p8*t.^3+p9*t.^2+p10*t.^1+p11);
>> t=[216:1300];
>> f=E(t);
>> plot(t,f)
>> hold on;
>> t1=[216+(t(t<=590)-216)*184/374 400+(t(t>590)-590)*900/710];
>> plot(t1,f)
>>
7Â¥2009-07-11 19:28:52
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hitzhang

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8Â¥2009-07-11 19:29:31
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woshilsh

ÈÙÓþ°æÖ÷ (Ö°Òµ×÷¼Ò)

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¡ï ¡ï ¡ï
kuhailangyu(½ð±Ò+3,VIP+0):ÐÁ¿àÁË 7-11 20:09
ÎÒ°ÑhitzhangÐֵĸÄÁËÏ£¬ÈÃ×Ý×ø±ê±£³Ö²»±ä£¬ÕâÊÇÕÅÐÖû¿¼Âǵ½µÄ
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syms t
p1 = 6.6686e-026;
  p2 = -3.0826e-022;
  p3 = 9.509e-020;
  p4 = 2.2472e-015;
  p5 = -6.6142e-012;
  p6 = 9.2298e-009;
  p7 = -7.4026e-006;
  p8 = 0.0035083;
  p9 = -0.94893;
  p10 = 134.87;
  p11 = -7806.5;
E=@(t)14*(p1*t.^10+p2*t.^9+p3*t.^8+p4*t.^7+p5*t.^6+p6*t.^5+p7*t.^4+p8*t.^3+p9*t.^2+p10*t.^1+p11);
t=[216:1300];
f=E(t);
plot(t,f)
hold on;
t1=[216+(t(t<=590)-216)*184/374 400+(t(t>590)-590)*900/710];
plot(t1,f)
hold on;
f1=E(t);
t11=t-100;
plot(t11,f1);

[ Last edited by woshilsh on 2009-7-11 at 19:59 ]
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9Â¥2009-07-11 19:57:34
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woshilsh(½ð±Ò+0,VIP+0):ºÇºÇ£¬²»Óò»Óã¬Ö÷ÒªÊÇhitzhang¸øÁËÎÒÆô·¢£¡ 7-11 20:02
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