next | previous | forward | backward | up | top | index | toc | Macaulay2 website
HyperplaneArrangements :: typeB

typeB -- Type B reflection arrangement

Synopsis

Description

The hyperplane arrangement with hyperplanes defined by the type-B_n root system: for example,
i1 : B3 = typeB(3)

o1 = {x , x , x , x  - x , x  + x , x  - x , x  + x , x  - x , x  + x }
       1   2   3   1    2   1    2   1    3   1    3   2    3   2    3

o1 : Hyperplane Arrangement 
i2 : describe B3

o2 = {x , x , x , x  - x , x  + x , x  - x , x  + x , x  - x , x  + x }
       1   2   3   1    2   1    2   1    3   1    3   2    3   2    3
i3 : ring B3

o3 = QQ[x ..x ]
         1   3

o3 : PolynomialRing

See also

Ways to use typeB :

For the programmer

The object typeB is a method function.