Znn3bq.jpeg
²é¿´: 2191  |  »Ø¸´: 9
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

hym5701

ľ³æ (СÓÐÃûÆø)

[ÇóÖú] ÔõôÄܼÓËÙ£¬Ì«ÂýÁË ÒÑÓÐ1È˲ÎÓë

´ó¼ÒºÃ£¬ÎÒÓÐÒ»¸ö»ý·ÖÒª¼ÆË㣬Ö÷ÒªÊÇ»ý·ÖÇø¼äÊÇ-infµ½inf£¬ËãµÄÌ«ÂýÁË£¬¼´Ê¹Êǰѻý·ÖÇø¼ä»»³É£¨-1,1£©ºÃÏñÒ²ºÜÂý£¬Ôõô»ØÊ£¬ÓÐûÓÐʲô·½·¨ÄܼÓËÙÌá¸ßÔËËãËÙ¶ÈÄØ£¿Ð»Ð»!ÒªÊǰѻý·ÖÇø¼ä»»³É£¨-1,1£©Ôõô½á¹û»¹ÊÇÒ»¸ö±í´ïÊ½ÄØ£¬²»Ó¦¸ÃÊÇÒ»¸öÊýÖµÂð£¿
clc;clear
syms x
a=0.5;
b=0.8;
c=1;
d=2;
e=0.1;
fxfz=(a-i*(x-b))*(c+i*(x-d))*x*exp(e*x);
fxfm=(a^2+(x-b)^2)*(c^2+(x-d)^2)*(exp(e*x)-1)^2;
fjf=int(fxfz/fxfm,-inf, inf)
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hym5701

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
6Â¥: Originally posted by cob at 2015-09-23 19:51:18
'i' û¶¨Òå
·½³Ì
fun=@(x)(x.^2).*(exp(e*x)).*(((x-a)+i*b))./(((x-a).^2+b^2).*(exp(e*x)-1).^2);...

лл£¬i±íʾÊÇÐéÊý£¬²»ÐèÒª¶¨Ò壬ÁíÍâÎÊÏ£¬¹«Ê½ÀïµÄÿ¸ö³Ë³ýΪʲô¶¼ÒªÓõã³Ë.*ºÍµã³ý./ÓÖ²»ÊǾØÕó£¬ÒªÊǾØÕó»¹ÊÇÓõã³ËºÍµã³ýÂð£¿
7Â¥2015-09-24 12:36:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 10 ¸ö»Ø´ð

cob

ľ³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
hym5701: ½ð±Ò+20, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ¸ÐлÄãµÄÖ¸µ¼ 2015-09-24 12:38:04
xzhdty: лл²ÎÓë 2015-09-24 19:01:19
²»Óà syms x£¬ »á¿ìºÜ¶à
2Â¥2015-09-22 06:31:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hym5701

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by cob at 2015-09-22 06:31:19
²»Óà syms x£¬ »á¿ìºÜ¶à

²»syms x ÄÇÔõôÐУ¬Ëü²»ÊDZäÁ¿Âð
3Â¥2015-09-22 20:22:52
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

cob

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
3Â¥: Originally posted by hym5701 at 2015-09-22 20:22:52
²»syms x ÄÇÔõôÐУ¬Ëü²»ÊDZäÁ¿Âð...

ÔÚmatlabÍøÕ¾ÉÏÕÒµÄÀý×Ó£¬ÎÒûÓÐʵÑé¡£ÄãʵÑéÏ¡£Ó¦¸Ã»á¿ìºÜ¶à¡£ÎÒÒÔǰҲÓùýsyms£¬·¢ÏÖËüºÜÂý¡£»»ÁË£¬¾Í¿ì¶àÁË¡£


Create the function f(x) = 1/(x3 ¨C 2x ¨C c) with one parameter, c.

fun = @(x,c) 1./(x.^3-2*x-c);
Evaluate the integral from x=0 to x=2 at c=5.

q = integral(@(x)fun(x,5),0,2)
4Â¥2015-09-22 21:33:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 289 ·Ö105500ҩѧר˶Çóµ÷¼Á(ÕÒBÇøÑ§Ð£) +4 °×ÔÆ123456789 2026-04-13 4/200 2026-04-16 00:18 by ·ÛÇßÈô³¾
[¿¼ÑÐ] 0854Çóµ÷¼Á +12 ÃÅ·ÃþÃþ 2026-04-15 13/650 2026-04-16 00:14 by Art1977
[¿¼ÑÐ] 322Çóµ÷¼Á +7 123°²¿µ 2026-04-12 14/700 2026-04-15 21:48 by noqvsozv
[¿¼ÑÐ] ÇóÖúµ÷¼Á£¬¿çµ÷ +19 XÊ®¸¦´çY 2026-04-11 20/1000 2026-04-15 21:18 by cuisz
[¿¼ÑÐ] ͨÐŹ¤³ÌÇóµ÷¼Á£¡£¡£¡ +6 zlb770521 2026-04-14 6/300 2026-04-15 20:00 by ѧԱJpLReM
[¿¼ÑÐ] ҩѧ305Çóµ÷¼Á +7 Â꿨°Í¿¨boom 2026-04-11 7/350 2026-04-15 13:21 by Î÷±±Íû¡ª·çɳ
[¿¼ÑÐ] ¸÷λÀÏʦºÃ£¬Çóµ÷¼Á£¬±¾¿Æ211£¬Ò»Ö¾Ô¸Ìì½ò´óѧÉúÎïÓëҽҩѧ˶£¬²îÁ½Ãû¼ȡ¡£ +11 ·ÁùÁùjjj 2026-04-13 11/550 2026-04-14 16:01 by zs92450
[¿¼ÑÐ] µ÷¼Á +12 ÔÂ@163.com 2026-04-11 12/600 2026-04-14 15:37 by zs92450
[»ù½ðÉêÇë] RY£ºÖйú²ú³öµÄ¿ÆÑ§À¬»øÂÛÎÄ£¬¾ø¶ÔÊýÁ¿ºÍ±ÈÀý¶¼ÊÀ½çµÚÒ» +6 zju2000 2026-04-14 17/850 2026-04-14 14:34 by jurkat.1640
[¿¼ÑÐ] Çóµ÷¼Á +3 ÎÒ°®¸ßÊý¸ßÊý°®Î 2026-04-12 3/150 2026-04-14 01:00 by Íõ¬Bè±
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖÐÄÏ´óѧ 0855 »úе 286 Çóµ÷¼Á +11 ²»»á³ÔÈâ 2026-04-12 11/550 2026-04-13 21:59 by bljnqdcc
[¿¼ÑÐ] 302Çóµ÷¼Á +10 Ò×£¡? 2026-04-13 10/500 2026-04-13 19:04 by lbsjt
[¿¼ÑÐ] µ÷¼Á +5 ÎĵÀÐÇ̨ 2026-04-11 5/250 2026-04-11 15:01 by ¿­¿­Òª±ä˧
[¿¼ÑÐ] 0854µ÷¼Á +5 ÒôÏñµêÌý»¨¹ÄÏ· 2026-04-10 5/250 2026-04-11 10:49 by qingpingzhu
[¿¼ÑÐ] 284Çóµ÷¼Á +12 archer.. 2026-04-10 13/650 2026-04-11 08:44 by zhq0425
[¿¼ÑÐ] 083200 305·Ö Çó¶þÂÖµ÷¼Á ²»½ÓÊÜ¿çרҵ +9 Claireyyyy 2026-04-09 10/500 2026-04-10 21:21 by Claireyyyy
[¿¼ÑÐ] ¼ÆËã»úÀàÇóµ÷¼Á£¬22408-274·Ö +7 Éϰ¶deС³æ 2026-04-09 8/400 2026-04-10 19:56 by fxue1114
[¿¼ÑÐ] 265Çóµ÷¼Á +12 ·ç˵ËýÔçÍüÁË 2026-04-10 13/650 2026-04-10 18:56 by chemisry
[¿¼ÑÐ] Ò»Ö¾Ô¸»¦9£¬326ÉúÎïѧÇóÏà¹Ø×¨Òµµ÷¼Á +4 Áõīī 2026-04-09 4/200 2026-04-10 12:07 by pengliang8036
[¿¼ÑÐ] 292Çóµ÷¼Á +9 ЦЦԬ 2026-04-09 9/450 2026-04-10 10:05 by LHGeng
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û