人类步态的模型,由尼古拉斯Troje,与向量值对决的傅里叶级数的系数,是获得在动作捕捉数据的主成分实验中受试者在跑步机上行走....더읽어보기> >
人类步态的模型,由尼古拉斯Troje,与向量值对决的傅里叶级数的系数,是获得在动作捕捉数据的主成分实验中受试者在跑步机上行走....더읽어보기> >
非常有创造力的丹麦数学家,一个发明家,诗人经常写在古斯堪的那维亚语化名“Kumbel”意思是“墓碑。”A direct descendant of the Dutch naval hero of the 16th century who had the same name, Piet Hein was born in Copenhagen and studied at the Institute for Theoretical Physics of the University of Copenhagen (later the Niels Bohr Institute) and the Technical University of Denmark. ...더읽어보기> >
这是一个经典的难题。一把梯子靠在巷子的两边形成一个不平衡的十字架。每个梯子靠墙的基础,靠在墙的对面。如果一个梯子是30英尺长,20英尺长,和十字架的地步离地面10英尺,小巷有多宽?더읽어보기> >