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D.7.2.2 derivate
Procedure from library ainvar.lib (see ainvar_lib).
- Usage:
- derivate(m,id); m matrix, id poly/vector/ideal
- Assume:
- m is an nx1 matrix, where n = number of variables of the basering
- Return:
- poly/vector/ideal (same type as input), result of applying the
vector field by the matrix m componentwise to id;
- Note:
- the vector field is m[1,1]*d/dx(1) +...+ m[1,n]*d/dx(n)
Example:
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