v1.0.15
** Added Chebyshev separately with Neumann and Dirichlet BCs functionality
** Added Fourier differentiation matrix
** Added gradient function
Full Changelog: v1.0.14...v1.0.15
** Added Chebyshev separately with Neumann and Dirichlet BCs functionality
** Added Fourier differentiation matrix
** Added gradient function
Full Changelog: v1.0.14...v1.0.15