This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)

LinearFractionalTransform

LinearFractionalTransform[m]
gives a TransformationFunction that represents a linear fractional transformation defined by the homogeneous matrix m.
LinearFractionalTransform[{a, b, c, d}]
represents a linear fractional transformation that maps r to (a.r+b)/(c.r+d).
  • For ordinary linear fractional transforms in n dimensions, m is an (n+1)×(n+1) matrix.
New in 6