Trouble rotating a matrix using rotate

I have 3x3 rotation matrices that I am trying to rotate about specific axes and angles. When I try to rotate them using rotate, I get this error.

Error using rotate (line 29)

H must contain axes children only.

Answer 1

[Walter Roberson]

rotate() cannot be used to rotate matrices. rotate() applies to graphics objects such as plots or images.

See imrotate()