Vectors - Math is Fun
A vector is a quantity that has magnitude and direction. Learn how to add, subtract, multiply and convert vectors in 2 or more dimensions with examples and interactive diagrams.
Vector Calculator - Math is Fun
Enter values into Magnitude and Angle ... or X and Y. It will do conversions and sum up the vectors. Learn about Vectors and Dot Products.
Dot Product - Math is Fun
Learn how to calculate the dot product of two vectors using a central dot or a scalar multiplication. See the formula, examples, applications in physics and geometry, and how to use the vector …
Scalar, Vector, Matrix - Math is Fun
A scalar is a number that has only magnitude, such as 3 or -5. A vector is a list of numbers that has magnitude and direction, such as (4,7) or (1,4,5). Learn how to use, add, subtract and …
Vector Definition (Illustrated Mathematics Dictionary) - Math is Fun
Illustrated definition of Vector: A vector has magnitude (how long it is) and direction. Play with one below:
Unit Vector - Math is Fun
A unit vector is a vector with magnitude 1 that points in a certain direction. Learn how to use unit vectors to scale, add and subtract vectors in 2D and 3D space.
Cross Product - Math is Fun
Learn how to calculate the cross product of two vectors, a × b, which is a vector perpendicular to both a and b. See the formula, the right hand rule, and the area of a parallelogram.
Unit Vector Definition (Illustrated Mathematics Dictionary) - Math …
A vector with a magnitude (length) of 1. See: Vector Unit Vector
Solving Systems of Linear Equations Using Matrices - Math is Fun
Learn how to use matrices to solve systems of linear equations with examples and exercises. Find the values of a, b, and c in the matrix equation AX = B by using the inverse or the transpose of A.
Determinant of a Matrix - Math is Fun
Learn how to calculate the determinant of a square matrix, which is a special number that helps find the inverse and other properties. See examples for 2x2, 3x3 and 4x4 matrices and the …