How to display quaternion number?

Hello,

I want to dispaly a quaternion number as q= 1+2i+3j+4k .But the code is not working.

Here the code;

q=quaternion(1,2,3,4);

this is the error;

Undefined function 'quaternion' for input arguments of type 'double'.

Anybody can help me please?

Answer 1

[John Doe]

q = quaternion([1 2 3 4])

[hsgaya]

It also not working.Same error comming.

[John Doe]

Both methods work perfectly well for me. According to the documentation quaternion function wasn't implemented until R2018a. What version are you using? This seems to be your problem.

Introduced in R2018a

q=quaternion(1,2,3,4)

q = 

  quaternion


     1 + 2i + 3j + 4k

>> q = quaternion([1 2 3 4])

q = 

  quaternion


     1 + 2i + 3j + 4k

[hsgaya]

Thank you John.I'm using R2014a version.I think it is the problem.

[John Doe]

What are you trying to do?

[hsgaya]

This is my question.

https://in.mathworks.com/matlabcentral/answers/471483-rotating-cube-by-quaternions