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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]) ÕâÌõÇúÏß×î´óÖµËùÔÚºá×ø±ê´ó¸ÅÊÇ590£¬ÎÒÏëÈÃÇúÏßµÄ×î´óÖµ³öÏÖµÄÔçһЩ£¬ºá×ø±êÔÚ400×óÓÒ£¬ÇëÎÊÔõô¸Ä³ÌÐò£¿µ«ÊÇÇúÏßµÄÐÎ×´²»Äܸı䣬³ÌÐò¸ÄºóÒªÓÐÒ»ÖÖÏò×ó²à²¨¶¯´«µÝµÄ¸Ð¾õ¡£Ð»Ð» [ Last edited by nono2009 on 2009-9-23 at 21:46 ] |
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monitor2885
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2Â¥2009-07-11 15:41:20
cloisonne
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kuhailangyu(½ð±Ò+2,VIP+0):»¶Ó²ÎÓëÌÖÂÛ 7-11 19:15
kuhailangyu(½ð±Ò+2,VIP+0):»¶Ó²ÎÓëÌÖÂÛ 7-11 19:15
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3Â¥2009-07-11 16:18:17
sunjianpeng2001
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kuhailangyu(½ð±Ò+1,VIP+0):»¶Ó²ÎÓëÌÖÂÛ 7-11 19:17
kuhailangyu(½ð±Ò+1,VIP+0):»¶Ó²ÎÓëÌÖÂÛ 7-11 19:17
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4Â¥2009-07-11 17:45:05
monitor2885
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5Â¥2009-07-11 18:22:08
monitor2885
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6Â¥2009-07-11 18:30:08
hitzhang
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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
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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
|
>> 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
hitzhang
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8Â¥2009-07-11 19:29:31
woshilsh
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kuhailangyu(½ð±Ò+3,VIP+0):ÐÁ¿àÁË 7-11 20:09
kuhailangyu(½ð±Ò+3,VIP+0):ÐÁ¿àÁË 7-11 20:09
|
ÎÒ°ÑhitzhangÐֵĸÄÁËÏ£¬ÈÃ×Ý×ø±ê±£³Ö²»±ä£¬ÕâÊÇÕÅÐÖû¿¼Âǵ½µÄ È»ºóºá×ø±êÆ½ÒÆ£¡µÃ³ö3ͼ£¬ 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 ] |

9Â¥2009-07-11 19:57:34
monitor2885
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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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10Â¥2009-07-11 20:01:45














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