²é¿´: 1622  |  »Ø¸´: 8

sxyzt

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

[ÇóÖú] ÇóÒ»¸öÁ½Ôª·½³Ì×é ÒÑÓÐ2È˲ÎÓë

Çó¸ßÊÖ°ïæ½âÏÂxºÍy£¬ÆäËû²ÎÊýÊÇÒÑÖªÁ¿£¬Ð»Ð»

ÇóÒ»¸öÁ½Ôª·½³Ì×é
ÎÞ±êÌâ.jpg
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

feixiaolin

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ÓÅÐã°æÖ÷

¸ù¾ÝÉÏʽ£¬y=1/[a-1/(b+x)]-c
´úÈëÏÂʽ£¬½â·ÇÏßÐÔ·½³Ì
2Â¥2016-04-24 23:35:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Edstrayer

°æÖ÷ (ÖøÃûдÊÖ)

·½´ç¶·ÊÒСÌìµØÕýÆøÃÔÂþ´óÊÀ½ç

ÒýÓûØÌû:
2Â¥: Originally posted by feixiaolin at 2016-04-24 23:35:07
¸ù¾ÝÉÏʽ£¬y=1/-c
´úÈëÏÂʽ£¬½â·ÇÏßÐÔ·½³Ì

ÊǸöÐÎʽ¸´ÔÓµÄÒ»Ôª¶þ´Î·½³Ì
Çà´ÐËêÔÂÊ¥µ®Ò¹£¬ÀËÂþ¸èÎèÓ­ÐÂÄê¡£
3Â¥2016-04-25 02:14:09
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sxyzt

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

ÒýÓûØÌû:
2Â¥: Originally posted by feixiaolin at 2016-04-24 23:35:07
¸ù¾ÝÉÏʽ£¬y=1/-c
´úÈëÏÂʽ£¬½â·ÇÏßÐÔ·½³Ì

±È½Ï¸´ÔÓ£¬ËùÒÔÇó¸ßÊÖ½âÏÂ

·¢×ÔСľ³æIOS¿Í»§¶Ë
4Â¥2016-04-25 07:38:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wurongjun

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
sxyzt: ½ð±Ò+10, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-04-25 09:20:05
ÕâÔõôÊǼòµ¥¸úÌû°¡,Õæ¸ã²»Ã÷°×!
y=
[ -1/2*(-a*b-c*d+a*e-b*d-d*f+d*e+a*c+a*b*c*d+a*b*d*f+a*f-a*c*d*e-a*d*e*f-((-a*b+b*d+a*b*d*f-a*b*c*d+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e))^(1/2))/(a*b*d-a*d*e-d+a)]
[ -1/2*(-a*b-c*d+a*e-b*d-d*f+d*e+a*c+a*b*c*d+a*b*d*f+a*f-a*c*d*e-a*d*e*f+((-a*b+b*d+a*b*d*f-a*b*c*d+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e))^(1/2))/(a*b*d-a*d*e-d+a)]
x=
[ -(-c*d+a*c+d*f-a*f-a*e-b*d-d^2*e*f-a*b+3*d*e+a*b*c*d-2*a*c*d*e-a*b*d*f+2*a*d*e*f+d*e*((-a*b+b*d+a*b*d*f-a*b*c*d+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e))^(1/2)-((-a*b+b*d+a*b*d*f-a*b*c*d+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e))^(1/2)+c*d^2*e+a*e^2*d+b*d^2*e-a*b*d*e+d^2*e^2*a*c-d^2*e^2*a*f-d^2*e^2-b*d^2*a*c*e+b*d^2*a*e*f)/(-a*b*d+a*d*e+2*d-2*a+d^2*f*a*b-d^2*f*a*e-d^2*f+d*f*a+d^2*c+b*d^2-d^2*e-d*a*c-a*b*c*d^2+a*c*d^2*e+d*((-a*b+b*d+a*b*d*f-a*b*c*d+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e))^(1/2))]
[ -(-c*d+a*c+d*f-a*f-a*e-b*d-d^2*e*f-a*b+3*d*e+a*b*c*d-2*a*c*d*e-a*b*d*f+2*a*d*e*f-d*e*((-a*b+b*d+a*b*d*f-a*b*c*d+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e))^(1/2)+((-a*b+b*d+a*b*d*f-a*b*c*d+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e))^(1/2)+c*d^2*e+a*e^2*d+b*d^2*e-a*b*d*e+d^2*e^2*a*c-d^2*e^2*a*f-d^2*e^2-b*d^2*a*c*e+b*d^2*a*e*f)/(-a*b*d+a*d*e+2*d-2*a+d^2*f*a*b-d^2*f*a*e-d^2*f+d*f*a+d^2*c+b*d^2-d^2*e-d*a*c-a*b*c*d^2+a*c*d^2*e-d*((-a*b+b*d+a*b*d*f-a*b*c*d+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*f+a*e-a*c-d*f-d*e-a*d*e*f+c*d+a*c*d*e))^(1/2))]
ÉÆ¶ñµ½Í·ÖÕÓб¨,È˼äÕýµÀÊDz×É£.
5Â¥2016-04-25 08:00:25
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Mr__Right

ר¼Ò¹ËÎÊ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÒýÓûØÌû:
5Â¥: Originally posted by wurongjun at 2016-04-25 08:00:25
ÕâÔõôÊǼòµ¥¸úÌû°¡,Õæ¸ã²»Ã÷°×!
y=


x=

...

¿ÉÒÔ³¢ÊÔдµÃÈÝÒ×¶ÁЩ£¬
ÎÄÕÂÄËÉíÍâÖ®Îï,Òª¶à¿¼ÂDZ༭¡¢Éó¸åÈ˺ͶÁÕߵĸÐÊÜ¡£
6Â¥2016-04-25 09:09:56
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Mr__Right

ר¼Ò¹ËÎÊ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
sxyzt: ½ð±Ò+10 2016-04-25 09:20:12
ÒýÓûØÌû:
6Â¥: Originally posted by Mr__Right at 2016-04-25 09:09:56
¿ÉÒÔ³¢ÊÔдµÃÈÝÒ×¶ÁЩ£¬

\left\{
\begin{array}{ccc}
x_1=-\dfrac{a(bcd-df(b+e)+b+cde-c+e+f)+\sqrt{(a(bcd+df(e-b)+b-cde+c-e-f)+d(-b-c+e+f)-4)(a(bcd+df(e-b)+b-cde+c-e-f)+d
(-b-c+e+f))}-d(b+c+e-f)}{ ...

ÔÙÀ´Ò»´Î£¬

ÎÄÕÂÄËÉíÍâÖ®Îï,Òª¶à¿¼ÂDZ༭¡¢Éó¸åÈ˺ͶÁÕߵĸÐÊÜ¡£
7Â¥2016-04-25 09:11:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

´óÀÁèÍõºÆ

½ð³æ (ÖøÃûдÊÖ)

ѧÔü

´óÉñµÄÒãÁ¦¡£¡£¡£ÎªÈö²»×Ô¼º½â

·¢×ÔСľ³æAndroid¿Í»§¶Ë
Ò»²½Ò»²½ÍùÉÏ×ߣ¬£¬£¬£¬
8Â¥2016-04-25 09:40:48
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wurongjun

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

ÒýÓûØÌû:
6Â¥: Originally posted by Mr__Right at 2016-04-25 09:09:56
¿ÉÒÔ³¢ÊÔдµÃÈÝÒ×¶ÁЩ£¬

\left\{
\begin{array}{ccc}
x_1=-\dfrac{a(bcd-df(b+e)+b+cde-c+e+f)+\sqrt{(a(bcd+df(e-b)+b-cde+c-e-f)+d(-b-c+e+f)-4)(a(bcd+df(e-b)+b-cde+c-e-f)+d
(-b-c+e+f))}-d(b+c+e-f)}{ ...

>> factor(x)

ans =

[ -(-a*b-d^2*e*f+d*e*((-a*b+b*d+a*b*d*f-a*b*c*d+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f))^(1/2)+d*f+3*d*e+a*c-b*d-c*d-a*f-a*e+a*b*c*d-2*a*c*d*e-a*b*d*f+2*a*d*e*f-((-a*b+b*d+a*b*d*f-a*b*c*d+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f))^(1/2)-d^2*e^2+d^2*e*c+d*e^2*a+d^2*e*b-a*b*d*e+d^2*e^2*a*c-d^2*e^2*a*f-d^2*e*a*b*c+d^2*e*a*b*f)/(-a*b*d+a*d*e+2*d-2*a+d^2*f*a*b-d^2*f*a*e-d^2*f+d*f*a-d^2*e+c*d^2+b*d^2-a*b*c*d^2-d*a*c+a*c*d^2*e+d*((-a*b+b*d+a*b*d*f-a*b*c*d+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f))^(1/2))]
[ -(-a*b-d^2*e*f-d*e*((-a*b+b*d+a*b*d*f-a*b*c*d+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f))^(1/2)+d*f+3*d*e+a*c-b*d-c*d-a*f-a*e+a*b*c*d-2*a*c*d*e-a*b*d*f+2*a*d*e*f+((-a*b+b*d+a*b*d*f-a*b*c*d+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f))^(1/2)-d^2*e^2+d^2*e*c+d*e^2*a+d^2*e*b-a*b*d*e+d^2*e^2*a*c-d^2*e^2*a*f-d^2*e*a*b*c+d^2*e*a*b*f)/(-a*b*d+a*d*e+2*d-2*a+d^2*f*a*b-d^2*f*a*e-d^2*f+d*f*a-d^2*e+c*d^2+b*d^2-a*b*c*d^2-d*a*c+a*c*d^2*e-d*((-a*b+b*d+a*b*d*f-a*b*c*d+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f))^(1/2))]

>> factor(y)

ans =

[ -1/2*(-a*b+d*e-c*d-d*f+a*f+a*e-b*d+a*b*c*d+a*b*d*f+a*c-a*c*d*e-a*d*e*f-((-a*b+b*d+a*b*d*f-a*b*c*d+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f))^(1/2))/(a*b*d-a*d*e-d+a)]
[ -1/2*(-a*b+d*e-c*d-d*f+a*f+a*e-b*d+a*b*c*d+a*b*d*f+a*c-a*c*d*e-a*d*e*f+((-a*b+b*d+a*b*d*f-a*b*c*d+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f)*(-a*b+b*d+a*b*d*f-a*b*c*d+4+a*e-d*e-a*c+c*d+a*c*d*e+a*f-d*f-a*d*e*f))^(1/2))/(a*b*d-a*d*e-d+a)]
ÉÆ¶ñµ½Í·ÖÕÓб¨,È˼äÕýµÀÊDz×É£.
9Â¥2016-04-25 16:46:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ sxyzt µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Ò»Ö¾Ô¸Ìì½ò´óѧ»¯Ñ§¹¤ÒÕרҵ£¨081702£©315·ÖÇóµ÷¼Á +12 yangfz 2026-03-17 12/600 2026-03-21 03:30 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖйúʯÓÍ´óѧ£¨»ª¶«£© ±¾¿ÆÆë³¹¤Òµ´óѧ +3 ʯÄÜΰ 2026-03-17 3/150 2026-03-21 02:22 by JourneyLucky
[¿¼ÑÐ] »ª¶«Ê¦·¶´óѧ-071000ÉúÎïѧ-293·Ö-Çóµ÷¼Á +3 Ñо¿ÉúºÎÑþÃ÷ 2026-03-18 3/150 2026-03-21 01:30 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖпƼ¼´óѧ£¬080502£¬354·ÖÇóµ÷¼Á +5 ÊØºòϦÑôCF 2026-03-18 5/250 2026-03-21 01:06 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] Çóµ÷¼Á£¬Ò»Ö¾Ô¸:ÄϾ©º½¿Õº½Ìì´óѧ´óѧ £¬080500²ÄÁÏ¿ÆÑ§Ó빤³Ìѧ˶£¬×Ü·Ö289·Ö +4 @taotao 2026-03-19 4/200 2026-03-20 22:14 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤ 322Çóµ÷¼Á +4 È»11 2026-03-19 4/200 2026-03-20 22:12 by luoyongfeng
[¿¼ÑÐ] 290Çóµ÷¼Á +7 ^O^Ø¿ 2026-03-19 7/350 2026-03-20 21:43 by JourneyLucky
[¿¼ÑÐ] 265Çóµ÷¼Á +12 ÁºÁºÐ£Ð£ 2026-03-19 13/650 2026-03-20 21:01 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©»¯¹¤´óѧ0703»¯Ñ§318·Ö£¬ÓпÆÑо­Àú£¬Çóµ÷¼Á +4 һƿ±½¼×Ëá 2026-03-14 4/200 2026-03-20 20:36 by fen_rao
[¿¼ÑÐ] 353Çóµ÷¼Á +3 À­¹³²»Ðí±ä 2026-03-20 3/150 2026-03-20 19:56 by JourneyLucky
[¿¼ÑÐ] 0854¿É¿çµ÷¼Á£¬Ò»×÷Ò»ÏîºËÐÄÂÛÎÄÎåÏîרÀû£¬Ê¡¡¢¹ú¼¶Ö¤Êé40+ÊýÒ»Ó¢Ò»287 +8 СÀî0854 2026-03-16 8/400 2026-03-18 14:35 by ²«»÷518
[¿¼ÑÐ] 334Çóµ÷¼Á +3 Ö¾´æ¸ßÔ¶ÒâÔÚ»úÐ 2026-03-16 3/150 2026-03-18 08:34 by lm4875102
[¿¼ÑÐ] 308Çóµ÷¼Á +4 ÊÇLupa°¡ 2026-03-16 4/200 2026-03-17 17:12 by ruiyingmiao
[¿¼ÑÐ] [µ¼Ê¦ÍƼö]Î÷ÄϿƼ¼´óѧ¹ú·À/²ÄÁϵ¼Ê¦ÍƼö +3 ¼â½ÇСºÉ 2026-03-16 6/300 2026-03-16 23:21 by ¼â½ÇСºÉ
[¿¼ÑÐ] 0854¿ØÖƹ¤³Ì 359Çóµ÷¼Á ¿É¿çרҵ +3 626776879 2026-03-14 9/450 2026-03-16 17:42 by 626776879
[¿¼ÑÐ] 318Çóµ÷¼Á +3 Yanyali 2026-03-15 3/150 2026-03-16 16:41 by houyaoxu
[¿¼ÑÐ] 277²ÄÁÏ¿ÆÑ§Ó빤³Ì080500Çóµ÷¼Á +3 ×ÔÓɼå±ý¹û×Ó 2026-03-16 3/150 2026-03-16 14:10 by ÔËÆøyunqi
[¿¼ÑÐ] 26¿¼ÑÐÒ»Ö¾Ô¸ÖйúʯÓÍ´óѧ(»ª¶«)305·ÖÇóµ÷¼Á +3 ¼ÎÄêÐÂ³Ì 2026-03-15 3/150 2026-03-15 13:58 by ¹þ¹þ¹þ¹þºÙºÙºÙ
[¿¼ÑÐ] Ò»Ö¾Ô¸¹þ¹¤´ó²ÄÁÏ324·ÖÇóµ÷¼Á +5 ãÆÐñ¶« 2026-03-14 5/250 2026-03-14 14:53 by ľ¹Ï¸à
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û