1 also called zymogenic cell. Any one of the columnar epithelial cells or the cuboidal epithelial cells that line the gastric glands and secrete pepsinogen and intrinsic factor, which are needed for the digestion and absorption of vitamin B 12 and the normal development of red blood cells.
The red and blue vectors are the elements of the basis; the green vector can be given with the basis vectors. In linear algebra, a basis is a set of vectors in a given vector space with certain properties: 1  One can get any vector in the vector space by multiplying each of the basis vectors by different numbers, and then adding them up.  If any vector is removed from the basis, the property above is no longer satisfied.
Basic Linear Algebra In this chapter, we study the topics in linear algebra that will be needed in the rest of the book.We begin by discussing the building blocks of linear algebra: matrices and vectors.