Operations on Vectors

Mathematica represents vectors as lists, and never needs to distinguish between row and column cases. Vectors in Mathematica can always mix numbers and arbitrary symbolic or algebraic elements. Mathematica uses state-of-the-art algorithms to bring platform-optimized performance to operations on extremely long, dense, and sparse vectors.

Constructing Vectors

Table — construct a vector from an expression

Array — construct a vector from a function

ConstantArray — construct a vector of constants

SparseArray — construct a sparse vector from positions and values

Elements of Vectors

Length — number of elements in a vector

Part — extract an element of a vector ()

Set — reset an element of a vector ()

VectorQ — test whether an expression is a vector

Mathematical Operations

+ , * , ^ , ... — automatically element-wise:

Dot (. ) — scalar dot product

Cross ( ) — vector cross product (entered as Esc cross Esc)

Norm — norm of a vector

Total — total of elements in a vector

Vector Space Operations

VectorAngle — angle between two vectors

UnitVector — unit vector along a coordinate direction

Normalize — normalize a vector to unit length

Projection — find the projection of one vector on another

Orthogonalize — find a Gram-Schmidt orthonormal basis

KroneckerProduct — Kronecker outer product

Displaying Vectors

Row , Column — display in row or column form

Arrow — represent an arrow in a graphic

Vector Distance Measures »

EuclideanDistance   ▪ ManhattanDistance   ▪ ...

D — derivatives of vectors of functions and functions of vectors

Thread — force any function to thread over lists

TUTORIALS

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