"In mathematics, a sesquilinear form is a generalization of a bilinear form that, in turn, is a generalization of the concept of the dot product of Euclidean space. A bilinear form is linear in each of its arguments, but a sesquilinear form allows one of the arguments to be \"twisted\" in a semilinear manner, thus the name; which originates from the Latin numerical prefix sesqui- meaning \"one and a half\"."@en .