sqrt

Units & Measurements abbreviation · Math

sqrt
Stands forSquare root
CategoriesUnits & Measurements

sqrt stands for Square root, a math abbreviation.

Function name for the square root in programming languages, spreadsheets and plain-text math, returning the nonnegative number whose square equals the input: sqrt(49) = 7.

Example: The diagonal of a 3-by-4 rectangle is sqrt(3² + 4²) = 5.

Usage notes

The radical sign √ evolved from a stylized letter r for Latin radix (root), and René Descartes added the horizontal bar in 1637. Excel uses =SQRT() and LaTeX \sqrt{}. Real-valued sqrt is undefined for negative inputs, while complex arithmetic returns imaginary results.

More math abbreviations

  • SAS – Side-Angle-Side (congruence)
  • sec – Secant
  • sgn – Sign function
  • sin – Sine
  • sinh – Hyperbolic sine
  • SOHCAHTOA – Sine = Opposite/Hypotenuse, Cosine = Adjacent/Hypotenuse, Tangent =…
  • SSS – Side-Side-Side (congruence)
  • sup – Supremum
  • SVD – Singular value decomposition
  • tan – Tangent
  • tanh – Hyperbolic tangent
  • TFAE – The following are equivalent

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