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quadratic forms

quadratic forms is the plural of quadratic form.

Meaning of quadratic form

Noun

quadratic form (plural quadratic forms)

  1. A homogeneous polynomial of degree 2 in a given number of variables.
    • Historically, quadratic form theory has been treated as a rich but misunderstood uncle.1980, John Gregory, Quadratic Form Theory and Differential Equations, Academic Press, page ix
  2. (multivariate statistics) A scalar quantity of the form εᵀΛε, where ε is a vector of n random variables, and Λ is an n-dimensional symmetric matrix.
    • Quadratic forms of normal random vectors are of great importance in many branches of statistics, such as least-squares methods, the analysis of variance, regression analysis, and experimental design.2009, Allan Gut, An Intermediate Course in Probability, 2nd edition, Springer, page 136

Questions about quadratic forms

What is quadratic forms the plural of?
Quadratic forms is the plural of quadratic form.

Words near quadratic forms in the dictionary

  1. quadratic equation
  2. quadratic equations
  3. quadratic field
  4. quadratic fields
  5. quadratic form
  6. quadratic forms
  7. quadratic formula
  8. quadratic formulae
  9. quadratic formulas
  10. quadratic function
  11. quadratic functions

Source and license

Adapted from Wiktionary: quadratic forms (page history and authors); quadratic form (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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