²é¿´: 1277  |  »Ø¸´: 3
¡¾ÐüÉͽð±Ò¡¿»Ø´ð±¾ÌûÎÊÌ⣬×÷Õß×ÞÅô³Ì½«ÔùËÍÄú 5 ¸ö½ð±Ò
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

×ÞÅô³Ì

гæ (СÓÐÃûÆø)

[ÇóÖú] matlabÔËÐÐÅ£¶Ùµü´ú×ÜÌáʾÊäÈë²ÎÊý²»×ãÔõô»ØÊ°¡ ÒÑÓÐ1È˲ÎÓë

matlabÔËÐÐÅ£¶Ùµü´ú×ÜÌáʾÊäÈë²ÎÊý²»×ãÔõô»ØÊ°¡£¬ÏÂÃæÊdzÌÐò£¬
µü´ú³ÌÐò
function x=newton(fnew,dfnew,x0,delta,maxx)
for k=1:maxx
    x1=x0-fnew(x0)/dfnew(x0);
    err= x1-x0;
    if err<delta;
        break
    end
end
º¯Êý£º
function y=fnew(x)
y=x^2-0.388*x-0.026-10^6*x^3/(8314*473.15)
end
µ¼º¯Êý£º
function dy=dfnew(x)
dy=2*x-0.388-3*10^6*x^2/(8314*473.15)
end

matlabÔËÐÐÅ£¶Ùµü´ú×ÜÌáʾÊäÈë²ÎÊý²»×ãÔõô»ØÊ°¡
1592890520(1).png
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Æï¿ʮ°ËÔØ

гæ (Ö°Òµ×÷¼Ò)

4Â¥2020-06-23 21:54:58
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 4 ¸ö»Ø´ð

eleven_xia

ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
fnewºÍdfnew×÷Ϊ²ÎÊý´«µÝÐèÒªÏÈ@Ò»Ïµģ¬¿ÉÒÔÕâÑùµ÷Óãº
f1=@fnew;
f2=@dfnew;
newton(f1,f2,x0,delta,maxx);
ÈËÉúÖ»ÓÐÒ»Öֳɹ¦£¬¾ÍÊǰ´ÕÕ×Ô¼ºµÄÒâÔ¸»îÏÂÈ¥¡£
2Â¥2020-06-23 18:42:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

×ÞÅô³Ì

гæ (СÓÐÃûÆø)

3Â¥2020-06-23 21:02:29
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²»Ó¦Öú È·¶¨»ØÌûÓ¦Öú (×¢Ò⣺ӦÖú²Å¿ÉÄܱ»½±Àø£¬µ«²»ÔÊÐí¹àË®£¬±ØÐëÌîд15¸ö×Ö·ûÒÔÉÏ)
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 0854µç×ÓÐÅÏ¢Çóµ÷¼Á 324 +3 Promise-jyl 2026-03-23 3/150 2026-03-23 13:43 by wangkm
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖØÇì´óѧ085700×ÊÔ´Óë»·¾³£¬×Ü·Ö308Çóµ÷¼Á +3 īīĮ 2026-03-23 3/150 2026-03-23 11:14 by JourneyLucky
[¿¼ÑÐ] 291 Çóµ÷¼Á +4 »¯¹¤2026½ì±ÏÒµÉ 2026-03-21 4/200 2026-03-23 09:59 by bingchuan
[¿¼ÑÐ] 291Çóµ÷¼Á +5 ‹üÈA 2026-03-22 5/250 2026-03-23 09:20 by haoshis
[¿¼ÑÐ] 328Çóµ÷¼Á£¬Ó¢ÓïÁù¼¶551£¬ÓпÆÑо­Àú +6 ÉúÎ﹤³Ìµ÷¼Á 2026-03-17 10/500 2026-03-22 20:22 by edmund7
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤085600£¬×Ü·Ö304£¬±¾¿ÆÓÐÁ½Æªsci²ÎÓ룬Çóµ÷¼Á +4 ÐÒÔ˵Ľ´½´ 2026-03-22 5/250 2026-03-22 20:15 by edmund7
[¿¼ÑÐ] 293Çóµ÷¼Á +12 zjlµÄºÅ 2026-03-16 17/850 2026-03-22 16:51 by i_cooler
[¿¼ÑÐ] 289Çóµ÷¼Á +7 »³èªÎÕè¤l 2026-03-20 7/350 2026-03-22 15:57 by ColorlessPI
[¿¼ÑÐ] ¿¼Ñе÷¼Á +4 À´ºÃÔËÀ´À´À´ 2026-03-21 4/200 2026-03-22 12:15 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 285Çóµ÷¼Á +6 ytter 2026-03-22 6/300 2026-03-22 12:09 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 384Çóµ÷¼Á +3 ×Óϵ²© 2026-03-22 4/200 2026-03-22 11:04 by ²«»÷518
[¿¼ÑÐ] Ò»Ö¾Ô¸¶«»ª´óѧ¿ØÖÆÑ§Ë¶320Çóµ÷¼Á +3 Grand777 2026-03-21 3/150 2026-03-21 19:23 by ¼òÖ®-
[¿¼ÑÐ] 070300»¯Ñ§319Çóµ÷¼Á +7 ½õÀð0909 2026-03-17 7/350 2026-03-21 03:46 by JourneyLucky
[¿¼ÑÐ] 324·Ö 085600²ÄÁÏ»¯¹¤Çóµ÷¼Á +4 llllkkkhh 2026-03-18 4/200 2026-03-21 01:24 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸ Î÷±±´óѧ £¬070300»¯Ñ§Ñ§Ë¶£¬×Ü·Ö287£¬Ë«·ÇÒ»±¾£¬Çóµ÷¼Á¡£ +3 ³¿»èÏßÓëÐǺ£ 2026-03-18 3/150 2026-03-21 00:46 by JourneyLucky
[¿¼ÑÐ] 0817 »¯Ñ§¹¤³Ì 299·ÖÇóµ÷¼Á ÓпÆÑо­Àú ÓжþÇøÎÄÕ +22 rare12345 2026-03-18 22/1100 2026-03-20 20:39 by zhukairuo
[¿¼ÑÐ] 353Çóµ÷¼Á +3 À­¹³²»Ðí±ä 2026-03-20 3/150 2026-03-20 19:56 by JourneyLucky
[¿¼ÑÐ] 0856µ÷¼Á£¬ÊÇѧУ¾ÍÈ¥ +8 sllhht 2026-03-19 9/450 2026-03-20 14:25 by ÎÞи¿É»÷111
[¿¼ÑÐ] ¡¾Í¬¼ÃÈí¼þ¡¿Èí¼þ£¨085405£©¿¼ÑÐÇóµ÷¼Á +3 2026eternal 2026-03-18 3/150 2026-03-18 19:09 by ²«»÷518
[ÂÛÎÄͶ¸å] ÓÐûÓдóÀз¢Ð¡ÂÛÎÄÄÜ´øÎÒ¸ö¶þ×÷ +3 ÔöÈñ©ÈË 2026-03-17 4/200 2026-03-17 09:26 by xs74101122
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û