椭圆双曲线的有一个对偶性质:斜率比值为定值
上传于 2011-5-28 09:48 (48.5 KB)
无 EXIF 信息
评论
|网站统计|手机版|小黑屋|数学之家
GMT+8, 2024-5-7 19:53 , Processed in 1.203125 second(s), 17 queries .
Powered by Discuz! X3.1
© 2001-2013 Comsenz Inc.