²é¿´: 380  |  »Ø¸´: 7
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

cherry6

Ìú³æ (СÓÐÃûÆø)

[½»Á÷] Ö¸ÊýÇúÏߵķ½³ÌÔõôÔÚͼÐÎÉϽâÊÍÄØ£¿

µÃµ½Ò»¸öyÓëXµÄÖ¸ÊýÇúÏߣ¬·½³ÌÊÇ£º
y=a*e^(b*x)
ÆäÖУ¬eÊÇ×ÔÈ»¶ÔÊý¡£
ÇëÎÊ£¬aºÍbÔÚͼÐÎÉϵĽâÊÍÊÇʲô£¿
¼´
aÔ½´ó£¬ÇúÏßͼÐλáÔõôÑù£¿
bÔ½´ó£¬ÇúÏßͼÐλáÔõôÑù£¿

лл

» ²ÂÄãϲ»¶

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

cherry6

Ìú³æ (СÓÐÃûÆø)

upupupupupup--------------------------
4Â¥2009-09-24 01:44:22
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 8 ¸ö»Ø´ð

cherry6

Ìú³æ (СÓÐÃûÆø)

upupupupupup--------------------------
2Â¥2009-09-23 22:57:24
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

cherry6

Ìú³æ (СÓÐÃûÆø)

upupupupupup--------------------------
3Â¥2009-09-24 00:16:48
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

bote

"a" determines the curve position along the y-axis and

¡ï ¡ï ¡ï
cherry6(½ð±Ò+3,VIP+0):tks a lot! 9-24 08:11
also the orientation of curve opening (upward (a>0) or downward (a<0))

"b" determines the distance between the y axis and the half of the curve (which goes to infinite)
5Â¥2009-09-24 07:41:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 085601ר˶£¬×Ü·Ö342Çóµ÷¼Á£¬µØÇø²»ÏÞ +5 share_joy 2026-03-16 5/250 2026-03-18 14:48 by haxia
[¿¼ÑÐ] 297Çóµ÷¼Á +8 Ï·¾«µ¤µ¤µ¤ 2026-03-17 8/400 2026-03-18 14:30 by laoshidan
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á £¬Áù¼¶Òѹý£¬ÓпÆÑо­Àú +10 êØÎõÙâ 2026-03-15 10/500 2026-03-18 14:19 by 007_lilei
[¿¼ÑÐ] 280Çóµ÷¼Á +6 ¹¾ààÏþÏþ 2026-03-18 7/350 2026-03-18 11:25 by Î޼ʵIJÝÔ­
[¿¼²©] »·¾³ÁìÓòÈ«¹úÖØµãʵÑéÊÒÕÐÊÕ²©Ê¿1-2Ãû +3 QGZDSYS 2026-03-13 5/250 2026-03-18 11:13 by QGZDSYS
[¿¼ÑÐ] 303Çóµ÷¼Á +4 î£08 2026-03-17 6/300 2026-03-18 11:01 by Iveryant
[¿¼ÑÐ] ÉúÎïѧ071000 329·ÖÇóµ÷¼Á +3 ÎÒ°®ÉúÎïÉúÎﰮΠ2026-03-17 3/150 2026-03-18 10:12 by macy2011
[¿¼ÑÐ] 278Çóµ÷¼Á +5 ÑÌ»ðÏÈÓÚ´º 2026-03-17 5/250 2026-03-18 08:43 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 290Çóµ÷¼Á +3 p asserby. 2026-03-15 4/200 2026-03-17 16:35 by wangkm
[¿¼ÑÐ] Ò»Ö¾Ô¸ËÕÖÝ´óѧ²ÄÁϹ¤³Ì£¨085601£©×¨Ë¶ÓпÆÑо­ÀúÈýÏî¹ú½±Á½¸öʵÓÃÐÍרÀûÒ»ÏîÊ¡¼¶Á¢Ïî +6 ´ó»ðɽС»ðɽ 2026-03-16 8/400 2026-03-17 15:05 by ÎÞи¿É»÷111
[¿¼ÑÐ] 211±¾£¬11408Ò»Ö¾Ô¸ÖпÆÔº277·Ö£¬ÔøÔÚÖпÆÔº×Ô¶¯»¯Ëùʵϰ +6 Losir 2026-03-12 7/350 2026-03-17 12:09 by danranxie
[¿¼ÑÐ] 274Çóµ÷¼Á +5 ʱ¼äµã 2026-03-13 5/250 2026-03-17 07:34 by ÈÈÇéɳĮ
[¿¼ÑÐ] ÖпÆÔº²ÄÁÏ273Çóµ÷¼Á +4 yzydy 2026-03-15 4/200 2026-03-16 15:59 by Gaodh_82
[¿¼ÑÐ] 070303 ×Ü·Ö349Çóµ÷¼Á +3 LJY9966 2026-03-15 5/250 2026-03-16 14:24 by xwxstudy
[¿¼ÑÐ] 294Çóµ÷¼Á +3 Zys010410@ 2026-03-13 4/200 2026-03-15 10:59 by zhq0425
[¿¼ÑÐ] ±¾¿ÆÄϾ©´óѧһ־Ը´¨´óҩѧ327 +3 ÂóÌï¸ûÕß 2026-03-14 3/150 2026-03-14 20:04 by ÍâÐÇÎÄÃ÷
[¿¼ÑÐ] ѧ˶285Çóµ÷¼Á +13 Wisjxn 2026-03-12 46/2300 2026-03-14 10:33 by JourneyLucky
[¿¼ÑÐ] 311Çóµ÷¼Á +3 ¶¬Ê®Èý 2026-03-13 3/150 2026-03-13 20:41 by JourneyLucky
[¿¼ÑÐ] ÇóbÇøÑ§Ð£µ÷¼Á +3 ÖÜ56 2026-03-11 3/150 2026-03-13 16:20 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏר˶350 Çóµ÷¼Á +4 Íõ½ð¿Æ 2026-03-12 4/200 2026-03-13 16:02 by ruiyingmiao
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û