Does anyone know how to change your nick name on here?

When you collaborate or meet with a person or group online, it is called

Cengagenowv2 is a comprehensive online learning tool. using cengagenowv2, you may access all of the following except: 2. each time you log in, cengagenowv2 automatically performs a system check and informs you if your computer does not meet the cengagenowv2 system requirements. 3. which tab/page allows you to easily track your assignment scores, number of submissions, time spent, as well as the ability view assign

Let r be a robotic arm with a fixed base and seven links. the last joint of r is a prismatic joint, the other ones are revolute joints. give a set of parameters that determines a placement of r. what is the dimension of the configuration space resulting from your choice of parameters?