v0.2.2

Changes since v0.2.2

• Add ability to customise the order in which basis blades are displayed with BasisDisplayStyle on a per-algebra basis. (E.g., so that 3v12 - 2v13 + 1v23 displays as 1𝒆23 + 2𝒆31 + 3𝒆12 or 1𝒊 + 2𝒋 + 3𝒌).

• Add @symbolicga convenience macro for compiling symbolically evaluated expressions, inspired by serenity4/SymbolicGA.jl.

Full Changelog: v0.2.1...v0.2.2

v0.2.1

Changes since v0.2.1

• Support Multivectors with immutable component arrays (in particular, SVectors).
  Various improvements to type stability throughout.

• Change BasisBlade constructor argument order to BasisBlade{Sig}(coeff, bits). Matches the convention used throughout where the coefficient is followed by the unit basis blade, agreeing with mathematical notation.

• Prefer 0:dim:dim over (0, dim) as the grade parameter of scalar-pseudoscalars. This is more consistent with 0:dim and 0:2:dim.

• Add basis(Multivector{Sig,K}) to generate a multivector basis, and basis(sig, k) for a basis of blades (k is no longer a keyword argument for consistency).

Full Changelog: v0.2.0...v0.2.1

v0.2.0

First stable version with simplified type system.

Changes since v0.1.2

• Remove KVector{Sig,K} and Multivector{Sig} types in favour of Multivector{Sig,K}, where the grade K may now be a collection (e.g., range, tuple) in order to represent inhomogeneous multivectors.
  This simplifies and generalises the types: only one parametric type is needed, and arbitrary grade combinations (e.g., 0:2:dim for even multivectors) may be represented efficiently.

• Grade promotion between different grades returns the next smallest subalgebra out of

  • 0 for scalars,
  • (0, dim) for scalar-pseudoscalars,
  • 0:2:dim for even multivectors,
  • 0:dim for general multivectors,

  for more efficient representations.

• Remove vector_repr and make matrix_repr allow subspace representations.

• Rename poincaredual to rdual and add ldual. These are also known as the right and left complements.

• Add sandwich product and ‘antiwedge’ product ∨.

Full Changelog: v0.1.2...v0.2.0