[Bf-blender-cvs] [e65c647] master: Added a comment to our use of the term 'adjoint' in BLI_math.

[Lukas Tönne]

Commit: e65c64791233e9049475bc5b6b158ac0a4019fee
Author: Lukas Tönne
Date:   Mon Dec 7 12:35:36 2015 +0100
Branches: master
https://developer.blender.org/rBe65c64791233e9049475bc5b6b158ac0a4019fee

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.

===================================================================

M	source/blender/blenlib/BLI_math_matrix.h

===================================================================

diff --git a/source/blender/blenlib/BLI_math_matrix.h b/source/blender/blenlib/BLI_math_matrix.h
index 5900e39..6fb983a 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]);