23 Jun 2018 linkThe Dot Productimmersivemath.com/ila/ch03_dotproduct/ch03.html ↗mathlinear algebradot product
21 Jul 2017 linkRotate a unit sphere such as to align it two orthogonal unit vectorsmath.stackexchange.com/questions/1343514/rotate-a-unit-spher … ↗math3dlinear algebra
21 Jul 2017 linkFinding Rotation Axis and Angle to Align Two "Oriented Vectors"math.stackexchange.com/questions/624348/finding-rotation-axi … ↗3dmathlinear algebra
26 Jun 2017 linkFundamentals of Grassmann Algebra [pdf]terathon.com/gdc12_lengyel.pdf ↗linear algebra3dmath