ECE 417 - Introduction to Robotics
Notes
Matrix review:
Multiplication:
where
(dot
product)
sizes: 3x2 times 2x4 = 3x4
Remember: Row, Column (RC)
Note: Matrix multiplication does not commute:
In general
But associate property holds:
For many matrices
(i.e.,
non-singular matrices) there exists an inverse
such
that
Where I is an identity matrix. E.g.,
Matrix transpose:
interchanges
rows and columns