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Jacobian

the Jacobian of a list of polynomials
Syntax 

Jacobian(L:LIST):MAT

where L is a list of polynomials.

Description
This function returns the Jacobian matrix of the polynomials in L with respect to all the indeterminates of the current ring.

Example 
  Use R ::= QQ[x,y];
  L := [x-y, x^2-y, x^3-y^2];
  Jacobian(L);
Mat([
  [1, -1],
  [2x, -1],
  [3x^2, -2y]
])
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