Thanks elephantinc That sure is impressive I am finding vectors and matrices harder than modelling do you know anything about matrices at all could i am struggling with this too? the basics to vectors are pretty straight forward , but with matrices not got a great deal of knowledge or lit on the topic I came across these but not sure how to work it out; A =(1 -2 3) (3 1 5) (0 1 -3) B = ( 1 -8) (-9 8 )(2 4 ) Find A x B 2 (a) write out the rotation matrix that rotates an 2D object counterclockwise by 45 degrees by the coordinate origin. b) suppose the three vertices of a triangle are A(0,0), B(10,5) and C(5,8) .Where are the vertices after the triangle is rotated counterclockwise 45 degrees by the coordinate origin? Any help guidance would be greatful Jt