EntityQ2518906· pop 18· linked from 24 articlesdirection cosineSign in to saveCosines of the angles between the vector and the three coordinate axes.ConnectionsangleEntitybasisEntitygeometryEntityInternational Standard Book NumberEntityEuclidean vectorEntityanalytic geometryEntitythree-dimensional spaceEntityCartesian coordinate systemEntityscalar productEntityEuclidean spaceEntityunit vectorEntityeven and odd functionsEntityrelative directionEntityMathWorldEntityEuler anglesEntityEric W. WeissteinEntityorthonormalityEntityvector projectionEntitystandard basisEntitysine and cosineEntityCategoriesAlgebraic geometryVectors (mathematics and physics)