Description
Given a toric vector bundle in Klyachko's description,
toricChernCharacter computes its toric Chern character as introduced in [P].
toricChernCharacter calls internally the method
compatibleBases.
i1 : E = tangentBundle(projectiveSpaceFan 2)
o1 = {dimension of the variety => 2 }
number of affine charts => 3
number of rays => 3
rank of the vector bundle => 2
o1 : ToricVectorBundleKlyachko

i2 : toricChernCharacter E
o2 = HashTable{ 1 0  => { 1 ,  1 }}
 1 1   1   0 
 1 1  => { 1 ,  0 }
 0 1   1   1 
 1 0  => { 0 ,  1 }
 0 1   1   0 
o2 : HashTable

Caveat
This method works for a toric reflexive sheaf which is locally Weil (see
isLocallyFree for an example if the sheaf is locally Weil but not locally free) on a toric variety, whose fan is covered by simplicial cones of maximal dimension.