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NormalToricVarieties :: expression(ToricDivisor)

expression(ToricDivisor) -- get the expression used to format for printing

Synopsis

Description

This method is the primary function called upon by << to format for printing.

In this package, i-th torus-invariant prime Weil divisors are displayed as Di. Hence, an arbitrary torus-invariant Weil divisor is displayed as an integral linear combination of these expressions.

i1 : PP2 = projectiveSpace 2;
i2 : toricDivisor({2,-7,3},PP2)

o2 = 2*D  - 7*D  + 3*D
        0      1      2

o2 : ToricDivisor on PP2
i3 : 2*PP2_0+4*PP2_2

o3 = 2*D  + 4*D
        0      2

o3 : ToricDivisor on PP2
i4 : toricDivisor PP2

o4 = - D  - D  - D
        0    1    2

o4 : ToricDivisor on PP2

See also