A symbol used to distinguish a third quantity (" double prime") from two other related quantities and (" prime). Double primes are most commonly used to denote transformed coordinates, conjugate points, and derivatives. A double prime is also used to denote the number of arc seconds in an angle measure, or the number of inches in a length.

# Double Prime

## See also

Prime## Explore with Wolfram|Alpha

## References

Bringhurst, R.*The Elements of Typographic Style, 2nd ed.*Point Roberts, WA: Hartley and Marks, p. 277, 1997.

## Referenced on Wolfram|Alpha

Double Prime## Cite this as:

Weisstein, Eric W. "Double Prime." From
*MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/DoublePrime.html