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5. Basic (Standard Functions)


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5.0.1 base_cancel

base_cancel(S)

: It simplifies S by canceling the common factors of denominators and numerators.

Example:

 
 base_cancel([(x-1)/(x^2-1), (x-1)/(x^3-1)]); 

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5.0.2 base_choose

base_choose(L,M)

: It returns the list of the order M subsets of L.

Example:

 
 base_choose([1,2,3],2);

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5.0.3 base_flatten

base_flatten(S)

: It flattens a nested list S.

Example:

 
 base_flatten([[1,2,3],4]);

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5.0.4 base_intersection

base_intersection(A,B)

: It returns the intersection of A and B as a set.

Example:

 
 base_intersection([1,2,3],[2,3,5,[6,5]]);

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5.0.5 base_memberq

base_memberq(A,S)

: It returns 1 if A is a member of the set S else returns 0.

Example:

 
 base_memberq(2,[1,2,3]);

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5.0.6 base_permutation

base_permutation(L)

: It outputs all permutations of L. BUG; it uses a slow algorithm.

Example:

 
 base_permutation([1,2,3,4]);

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5.0.7 base_position

base_position(A,S)

: It returns the position of A in S.

Example:

 
 base_position("cat",["dog","cat","monkey"]);

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5.0.8 base_prune

base_prune(A,S)

: It returns a list in which A is removed from S.

Example:

 
 base_prune("cat",["dog","cat","monkey"]);

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5.0.9 base_replace

base_replace(S,Rule)

: It rewrites S by using the rule Rule

Example:

 
 base_replace(x^2+y^2,[[x,a+1],[y,b]]);

x is replaced by a+1 and y is replaced by b in x^2+y^2.


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5.0.10 base_set_minus

base_set_minus(A,B)

:

Example:

 
 base_set_minus([1,2,3],[3,4,5]);

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5.0.11 base_set_union

base_set_union(A,B)

:

Example:

 
 base_set_union([1,2,3],[3,4,5]);

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5.0.12 base_subsetq

base_subsetq(A,B)

:

Example:

 
 base_subsetq([1,2],[1,2,3,4,5]);

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5.0.13 base_subsets_of_size

base_subsets_of_size(K,S)

: It outputs all subsets of S of the size K. BUG; it uses a slow algorithm. Do not input a large S.

Example:

 
 base_subsets_of_size(2,[3,5,3,2]);

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This document was generated by Nobuki Takayama on January, 28 2008 using texi2html 1.76.