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Modula Definition | 1989-10-21 | 2.5 KB | 86 lines |
-
- (* DIP Termorder Optimization Definition Module. *)
-
- DEFINITION MODULE DIPTOO;
-
-
- FROM MASSTOR IMPORT LIST;
-
-
- PROCEDURE DIPDEM(A: LIST): LIST;
- (*Distributive polynomial degree matrix. A is a distributive
- polynomial. B is the degree matrix of A. *)
-
-
- PROCEDURE DIPDEV(A: LIST): LIST;
- (*Distributive polynomial degree vector. A is a distributive
- polynomial. N is the degree vector of A.*)
-
-
- PROCEDURE DIPLDM(A: LIST): LIST;
- (*Distributive polynomial list degree matrix. A is a list of
- distributive polynomials. B is the sum of all degree matrices
- of each element of A. *)
-
-
- PROCEDURE DIPTRM(A: LIST): LIST;
- (*Distributive polynomial terms. A is a distributive polynomial
- in r variables. T is a list of beta-integers each counting
- the terms in the respective variable.*)
-
-
- PROCEDURE DIPTYP(A: LIST): LIST;
- (*Distributive polynomial typ. A is a distributive polynomial
- in r variables. t is a rational number, t is the typ of A,
- 0 lt t le 1. *)
-
-
- PROCEDURE DIPVOP(P,V: LIST; VAR PP,VP: LIST);
- (*Distributive polynomial variable ordering optimisation.
- P and PP are lists of distributive polynomials.
- V and VP are variable lists. The optimal variable ordering
- for the polynomials in P is determined. The variables
- of the polynomials in P are permuted to produce PP.
- VP is the new variable list.*)
-
-
- PROCEDURE DMEVAD(A,E: LIST): LIST;
- (*Degree matrix exponent vector add. A is a degree matrix.
- E is an exponent vector. B=A + E. *)
-
-
- PROCEDURE HDIFDI(A: LIST; VAR B,FL: LIST);
- (*Homogeneous distributive polynomial from distributive polynomial.
- A is a distributive polynomial in r variables. s=r+1.
- If A is allready homogeneous then f=0 else f=1.
- B(xs,x1, ...,xr)=(xs)**(tdeg(A)) * A(x1/xs, ...,xr/xs). *)
-
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- PROCEDURE LBLXCO(U,V: LIST): LIST;
- (*List of beta integers lexicographical compare.
- U=(u1, ...,ur), V=(v1, ...vs) are lists of beta integers.
- t=0 if U eq V. t=1 if U gt V. t=-1 if U lt V. eq, gt,
- lt with respect to the lexicographical ordering of the
- beta integers. *)
-
-
- PROCEDURE PTERM(RL,A: LIST): LIST;
- (*Polynomial terms. A is a recursive polynomial in r
- variables. T is a list of beta-integers each counting the
- terms in the respective variable.*)
-
-
- PROCEDURE PTYP(RL,A: LIST): LIST;
- (*Polynomial typ. A is a recursive polynomial in r variables.
- t is a rational number, t is the PTYP of A, 0 lt t lt 1. *)
-
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- PROCEDURE PVDEMA(A: LIST): LIST;
- (*Permutation vector for degree matrix. A is a degree matrix.
- P is a permutation vector. *)
-
-
- END DIPTOO.
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