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Linear transformations
Linear transformations include coordinate transformations
in the plane and in the three dimensional space. The trans-
formations are rotation, translation and scaling. The point to
be transformed is given relative a rectangular coordinate sys-
tem.
Mixed transformations (concatinating) is possible. The order
of the transformations is important if rotation is one of the
them.
2
g ir-TC
2 D transformations (two dimensions)
Rotation
The rotation angle must be given in degrees' and the transfor-
med point is given as components of a list (to allow symbols).
The rotation is counterclockwise for positive angles about an
arbitrary point.
Bf
3
a
„
2. Linear algebra
18
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