Question

Can degrees of freedom be a decimal

Answer 1

Yes degrees of freedom can be decimal.

Answer 2

A "degree of freedom" can never be decimal.  

Explanation:

A degree of freedom in a mechanical component can be the number of possible movements that can exist in a structure. Degree of freedom contributes to the flexibility of any structure.

In robotics, the degree of freedom decides the operational ability of a robotic arm. Generally a robotic arm may contain many degrees of freedom because of the requirement of the complex operations.