Search results
Results from the WOW.Com Content Network
R – real numbers. ran – range of a function. rank – rank of a matrix. (Also written as rk.) Re – real part of a complex number. [2] (Also written.) resp – respectively. RHS – right-hand side of an equation. rk – rank. (Also written as rank.) RMS, rms – root mean square. rng – non-unital ring. rot – rotor of a vector field
The set of real numbers, sometimes called "the reals", is traditionally denoted by a bold R, often using blackboard bold, . [ 2 ] [ 3 ] The adjective real , used in the 17th century by René Descartes , distinguishes real numbers from imaginary numbers such as the square roots of −1 .
Abbreviation of "therefore". Placed between two assertions, it means that the first one implies the second one. For example: "All humans are mortal, and Socrates is a human. ∴ Socrates is mortal." ∵ Abbreviation of "because" or "since". Placed between two assertions, it means that the first one is implied by the second one.
This page was last edited on 20 December 2024, at 13:26 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
In mathematics, the set of positive real numbers, > = {>}, is the subset of those real numbers that are greater than zero. The non-negative real numbers, = {}, also include zero.
r for a radius, a remainder or a correlation coefficient; t for time; x, y, z for the three Cartesian coordinates of a point in Euclidean geometry or the corresponding axes; z for a complex number, or in statistics a normal random variable; α, β, γ, θ, φ for angle measures; ε (with δ as a second choice) for an arbitrarily small positive ...
Cartesian coordinates identify points of the Euclidean plane with pairs of real numbers. In mathematics, the real coordinate space or real coordinate n-space, of dimension n, denoted R n or , is the set of all ordered n-tuples of real numbers, that is the set of all sequences of n real numbers, also known as coordinate vectors.
For a lattice L in Euclidean space R n with unit covolume, i.e. vol(R n /L) = 1, let λ 1 (L) denote the least length of a nonzero element of L. Then √γ n n is the maximum of λ 1 (L) over all such lattices L. 1822 to 1901 Hafner–Sarnak–McCurley constant [118]