The Outlines of Quaternions

axis bisects centre circle circumcentre coincide coinitial vectors collinear commutative law conic conjugate consequently coplanar coplanar quaternions Crown 8vo diplanar direction equal equation given Hence hyperbola incentre latus rectum length Let OA locus mean point mẞ Multiplying OABC operation opposite P₁ parabola parallelogram parallelopiped perpendicular plane AOB positive or negative quotient reciprocal right angles right quaternion right versors rotation Saß Saßy scalar Similarly sphere square roots symbols T²q tangent TaTB TaTẞ tensor three coinitial three vectors triangle TẞTa unit-vector Uẞ variable Vaß versor versor which turns VqVr VrVq Woodcuts zero αβ βα μ² Τα Τβ φρ ОА ᎢᏰ