MatrixSpecial

© 2011 Anna Bigatti
GNU Free Documentation License, Version 1.2



CoCoALib Documentation Index

User documentation for MatrixSpecial

Examples

Special Matrices

  jacobian(f, indets)

where f (polynomials) and indets (indeterminates) are vectors of RingElem, all belonging to the same PolyRing. Throws if both f and indets are empty (cannot determine the ring for constructing the 0x0 matrix).

The (i,j)-th element of the Jacobian matrix is defined as the derivative of i-th function with respect to the j-th indeterminate.

  TensorMat(A, B)

where A and B are matrices with the same BaseRing.

a_11 B a_12 B ... a_1c B
a_21 B a_22 B ... a_2c B
...
a_r1 B a_r2 B ... a_rc B

Maintainer documentation

Bugs, shortcomings and other ideas

Main changes

2011