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Scalar

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A scalar is value (such as a measurement) that has only magnitude but not direction. This contrasts with a vector, which has direction as well as magnitude.

Scalar is a high school-level concept that would be first encountered in a pre-calculus course. It is listed in the California State Standards for Linear Algebra.

Examples

Real Number: A real number is a number corresponding to a point on the real number line.

Prerequisites

Vector: (1) In vector algebra, a vector mathematical entity that has both magnitude (which can be zero) and direction. (2) In topology, a vector is an element of a vector space.

Classroom Articles on Pre-Calculus (Up to High School Level)

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  • Complex Conjugate
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  • Logarithm
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  • Complex Number
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  • Natural Logarithm
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  • Complex Plane
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  • Normal Vector
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  • Conic Section
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  • Parabola
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  • Cross Product
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  • Parametric Equations
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  • Curve
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  • Plane
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  • Determinant
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  • Plane Curve
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  • Domain
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  • Polar Coordinates
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  • Dot Product
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  • Range
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  • Rational Function
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  • Ellipse
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  • Reflection
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  • Exponential Function
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  • Rotation
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  • Function
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  • Rotation Matrix
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  • Hyperbola
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  • Spherical Coordinates
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  • i
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  • Tangent Line
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  • Imaginary Number
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  • Translation
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  • Inverse Function
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