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author | Lukas Tönne <lukas.toenne@gmail.com> | 2015-12-07 14:35:36 +0300 |
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committer | Lukas Tönne <lukas.toenne@gmail.com> | 2015-12-07 14:35:36 +0300 |
commit | e65c64791233e9049475bc5b6b158ac0a4019fee (patch) | |
tree | 650ae61437974c3350bc722209df3b8ae96407e5 /source/blender/blenlib/BLI_math_matrix.h | |
parent | 9e0757a3671d15ec8b50aad404d3b5c38e549577 (diff) |
Added a comment to our use of the term 'adjoint' in BLI_math.
In modern usage this means the conjugate transpose, but we stick to
the classical usage (i.e. adjugate matrix), like Eigen does.
Diffstat (limited to 'source/blender/blenlib/BLI_math_matrix.h')
-rw-r--r-- | source/blender/blenlib/BLI_math_matrix.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_math_matrix.h b/source/blender/blenlib/BLI_math_matrix.h index 5900e391d3e..6fb983a622e 100644 --- a/source/blender/blenlib/BLI_math_matrix.h +++ b/source/blender/blenlib/BLI_math_matrix.h @@ -173,6 +173,10 @@ bool is_orthonormal_m4(float mat[4][4]); bool is_uniform_scaled_m3(float mat[3][3]); bool is_uniform_scaled_m4(float m[4][4]); +/* Note: 'adjoint' here means the adjugate (adjunct, "classical adjoint") matrix! + * Nowadays 'adjoint' usually refers to the conjugate transpose, + * which for real-valued matrices is simply the transpose. + */ void adjoint_m2_m2(float R[2][2], float A[2][2]); void adjoint_m3_m3(float R[3][3], float A[3][3]); void adjoint_m4_m4(float R[4][4], float A[4][4]); |