Changes in version 2.1.2                        

  - kronecker(X, Y) is much faster when X is diagonal matrix
  - as_piecewise() added.
  - Now depends on matrix package.
  - Now == is handled for caracas symbols. Not sure if perfect, though.
  - solve_lower_triangular() and solve_upper_triangular() added.
  - unique() method added.
  - Bug fixed in rowspace()
  - tex_list() added
  - toeplitz_() added.

                 Changes in version 2.1.1 (2023-11-30)                  

  - print(..., method = "compactascii"): column vector as transposed row
    vector and handling caracas_scaled_matrix
  - LUdecomposition(), chol() (Cholesky), svd_() (Singular Value
    decomposition) added.
  - cumsum() added.
  - as.expression() (alias for as_expr()) and as.function() (alias for
    as_func()) cf. #75

                 Changes in version 2.1.0 (2023-10-17)                  

  - Added knitr engine rtex (see vignette "Chunk engine for easy tex
    output in Rmarkdown and Quarto")
  - New functions: as_expr.caracas_solve_sys_sol
  - inv() by default uses gauss like SymPy
  - kronecker(), rep() added
  - solve() now dispatches on caracas_symbols and works like solve_lin()
  - scale_matrix() can construct matrix-scalar products for prettier
    output
  - print(..., method = "compactascii") as prettyascii except more
    compact matrices by removing empty rows
  - More compact solve_sys() result printing when there is only one
    unknown

                 Changes in version 2.0.1 (2023-08-11)                  

  - New functions, e.g.: as_vec(), trace_()
  - Initialisation of SymPy/Python is now done at package at start up.
    This may move the waiting time from first time using the SymPy
    backend to loading the package. This was done to satisfy CRAN
    checks.
  - Minor bug fixes

                 Changes in version 2.0.0 (2023-01-31)                  

  - Reworked subs() - see documentation. subs_lst() removed.
  - Reworked output format (utf8, prettyascii or ascii) to one argument
    and one option, i.e. options(caracas.print.method = 'prettyascii')
    and print(x, method = "prettyascii") (default is utf8)
  - New function: as_func()
  - dim()<- assignment for caracas matrices

                        Changes in version 1.1.3                        

  - Imports the Matrix package instead of only suggesting
  - New functions: vector_sym(), matrix_sym(), matrix_sym_diag(),
    matrix_sym_symmetric()
  - New function: colspan() (Column space (range) of a symbolic matrix)
  - New function: get_basis() Get basis for symbolic matrix / vector.
  - New function: all_vars Get all symbols in caracas symbol.
  - matrify() now works on atomic elements.
  - New function: def_sym_vec() defines symbol for each element in a
    character vector.
  - New function: jacobian() function added.
  - New functions: zeros(), ones(), eye() added.
  - New function: diff_mat() added.
  - New functions: crossprod_(), tcrossprod_() added.

                 Changes in version 1.1.2 (2022-02-11)                  

  - sympy_func(x, fun) first tries calling fun on x; and if it does not
    exist it tries from the global namespace
  - New function: mat_pow() for raising a matrix to a power (not
    component-wise), requires SymPy >= 1.6
  - New function: expand_func() added
  - Added rev() for caracas_symbol's
  - Bug with Ops (functions) fixed
  - SymPy 1.9 bug with elementwise matrix multiplication
    (https://github.com/sympy/sympy/issues/22353) addressed
  - Enabling pretty ASCII print option
    (options(caracas.print.prettyascii = TRUE)) instead of UTF-8, if the
    system locale is not UTF-8; this be disabled with
    options(caracas.print.prettyascii = FALSE)

                 Changes in version 1.1.1 (2021-07-05)                  

  - Journal of Open Source Software submission

                 Changes in version 1.1.0 (2021-04-08)                  

  - Global symbol assignment by def_sym() (#18)
  - Linear algebra: New do_la() function with convinience functions like
    eigenval(), eigenvec(), QRdecomposition(); new vignette
    demonstrating these
  - Assumptions being made available, see e.g. symbol() and ask()
  - Arbitrary precision arithmetic: N() function and vignette on
    "Arbitrary precision arithmetic"
  - Rename eigen_val()/eigen_vec() to eigenval()/eigenvec()
  - More clear naming convention: R has expressions and caracas has
    symbols; in this connection as_r() was renamed to as_expr() and
    as_symbol() to as_sym(). Also, as_sym() changed argument from
    declare_variables to declare_symbols.
  - Changed internals such that der(), der2() and solve_sys() now takes
    multiple variables with list() (or as a vector symbol) instead of
    c(); see also matrify() and listify()
  - Added diag_() and matrix_() (postfix _ to avoid name clashes)
  - sumf() renamed to sum_() and prodf() to prod_() (postfix _ to avoid
    name clashes)
  - intf() renamed to int() and limf() to lim() (because there are no
    name clashes with base R)
  - Call SymPy functions directy with sympy_func()
  - Added taylor() and drop_remainder()
  - Minor bugs fixed

                 Changes in version 1.0.1 (2020-05-21)                  

  - Require Python 3

                 Changes in version 1.0.0 (2020-05-21)                  

  - An entire new interface for using SymPy, including symbols, symbolic
    matrices, solving equations, limits and lots of other functionality.

                 Changes in version 0.0.1 (2020-01-26)                  

  - Initial release