<a href="http://www.cisco.com/en/US/products/ps6599/prod_presentation_list.html">http://www.cisco.com/en/US/products/ps6599/prod_presentation_list.html</a>
<a href="http://www.cisco.com/en/US/products/ps6599/prod_presentation_list.html">http://www.cisco.com/en/US/products/ps6599/prod_presentation_list.html</a>
![B样条基函数&mdash;&mdash;B-Spline Basis Functions[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)