C intro.tex 1. The Almost Crystallographic Groups Package
S 1.1. More about almost crystallographic groups
C algos.tex 2. Algorithms for almost crystallographic groups
S 2.1. Properties of almost crystallographic groups
F 2.1. IsAlmostCrystallographic
F 2.1. IsAlmostBieberbachGroup
S 2.2. Betti numbers
F 2.2. OrientationModule
F 2.2. BettiNumber
F 2.2. BettiNumbers
S 2.3. Determination of certain extensions
F 2.3. HasExtensionOfType
C aclib.tex 3. The catalog of almost crystallographic groups
S 3.1. Rational matrix groups
F 3.1. AlmostCrystallographicGroup
F 3.1. AlmostCrystallographicDim3
F 3.1. AlmostCrystallographicDim4
S 3.2. Polycyclically presented groups
F 3.2. AlmostCrystallographicPcpGroup
F 3.2. AlmostCrystallographicPcpDim3
F 3.2. AlmostCrystallographicPcpDim4
F 3.2. IsomorphismPcpGroup
F 3.2. HolonomyGroup
F 3.2. NaturalHomomorphismOnHolonomyGroup
S 3.3. More about the type and the defining parameters
F 3.3. AlmostCrystallographicInfo
S 3.4. The electronic versus the printed library
C examp.tex 4. Example computations with almost crystallographic groups
S 4.1. Example computations I
S 4.2. Example computations II
S 4.3. Example computations III