Skip to main content
Logo image

Section 16.2 Terminology and notation

subspace
a subset of vectors in a vector space that itself is a vector space under the same addition and scalar multiplication operations as the parent vector space
trivial subspace
the subspace of a vector space consisting of only the zero vector
linear combination (of a collection of vectors v1,v2,,vm)
a vector that can be expressed as
k1v1+k2v2++kmvm
for some collection of scalars k1,k2,,km
subspace generated by a set of vectors S
the subspace of a vector space consisting of all possible linear combinations of vectors in S; also called the span of S, and written SpanS
spanning set (for a vector space)
a set of vectors in a vector space (or subspace of a vector space) where the subspace generated by the set is in fact the whole space; could also be called a generating set of vectors for the space
solution space of homogeneous system Ax=0
the subspace of Rn (where n is the number of columns of A) consisting of all solutions to the system