inert normal function
expression involving RootOfs
The Normal function is a placeholder for representing a normal form for an expression. It is used in conjunction with mod and evala as described below which defines the coefficient domain.
The call Normal(a) mod p computes a normal form for a where a is a rational expression over a finite field.
The call evala(Normal(a)) computes a normal form for a where a may contain algebraic coefficients defined by RootOfs or radicals. See evala,Normal for more information.
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