FullDefinition[symbol] prints as the definitions given for symbol, and all symbols on which these depend.
GaussianIntegers is an option for FactorInteger, PrimeQ, Factor, and related functions that specifies whether factorization should be done over Gaussian integers.
Hash
(Built-in Mathematica Symbol) Hash[expr] gives an integer hash code for the expression expr.Hash[expr, " type"] gives an integer hash code of the specified type for expr.
ImageAdjust[image] adjusts the levels in image, rescaling them to cover the range 0 to 1.ImageAdjust[image, c] adjusts the contrast of image by an amount c.ImageAdjust[image, ...
ImageKeypoints[image] finds key features in image and returns their coordinates.ImageKeypoints[image, prop] gives the specified property prop for each keypoint.
Kernels
(Built-in Mathematica Symbol) Kernels[] gives the list of running kernels available for parallel computing.
Log2
(Built-in Mathematica Symbol) Log2[x] gives the base-2 logarithm of x.
MantissaExponent[x] gives a list containing the mantissa and exponent of a number x. MantissaExponent[x, b] gives the base-b mantissa and exponent of x.
MaxIterations is an option that specifies the maximum number of iterations that should be tried in various built-in functions and algorithms.
Parallelization is an option for Compile that specifies whether it should create a compiled function that could run in parallel.