ImageAspectRatio[image] gives the ratio of height to width for image.
$DefaultImagingDevice gives the name of the default imaging device attached to the computer.
BitAnd
(Built-in Mathematica Symbol) BitAnd[n_1, n_2, ...] gives the bitwise AND of the integers n_i.
Divide
(Built-in Mathematica Symbol) x/y or Divide[x, y] is equivalent to x y^-1.
FromDigits[list] constructs an integer from the list of its decimal digits. FromDigits[list, b] takes the digits to be given in base b. FromDigits["string"] constructs an ...
Implies
(Built-in Mathematica Symbol) Implies[p, q] represents the logical implication p \[DoubleRightArrow] q.
IntegerExponent[n, b] gives the highest power of b that divides n.
MemberQ
(Built-in Mathematica Symbol) MemberQ[list, form] returns True if an element of list matches form, and False otherwise. MemberQ[list, form, levelspec] tests all parts of list specified by levelspec.
MultiplicativeOrder[k, n] gives the multiplicative order of k modulo n, defined as the smallest integer m such that k^m \[Congruent] 1 mod n. MultiplicativeOrder[k, n, {r_1, ...
PolynomialRemainder[p, q, x] gives the remainder from dividing p by q, treated as polynomials in x.