标签: graph plot points
是否有软件允许我绘制点的曲线图,用曲线近似,在这些点和线轴上使用tangen线? 就像在这张照片中一样
https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xft1/v/t34.0-12/11088723_10206601936073741_119889864_n.jpg?oh=4a1176015da662c59ce84e9d4d73302f&oe=552ADB58&gda=1428875946_869ec42864624dca087f6bb42d050057