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4.2.5 Commands and Functions for Numbers

The following are commands and functions for numbers:

INTEGERS

Abs	absolute value of a number
Bin	binomial coefficient
BinExp	binomial expansion
Den	denominator
Div	quotient for integers
EvalBinExp	binomial expansion functions
EvalHilbertFn	evaluate the Hilbert function
Fact	factorial function
Fraction	returns the quotient of its arguments
GCD	greatest common divisor
GCDFreeBasis	determine (minimal) GCD free basis of a set of integers
GenericPoints	random projective points
ILogBase	integer part of the logarithm
Inverse	multiplicative inverse
Iroot	integer part of r-th root of an integer
IsEven, IsOdd	test whether an integer is even or odd
IsNumber	checks if the argument is a number
IsPPrime	checks if an integer is a probable prime
IsPrime	prime integer test
Isqrt	(truncated) square root of an integer
IsZero	test whether an object is zero
LCM	least common multiple
Len	the length of an object
Max, Min	a maximum or minimum element of a sequence or list
Mod	remainder for integers
Mod2Rat	reconstructing rationals from modular integers
NextPPrime	find the next largest probable prime number
NextPrime	find the next largest prime number
Num	numerator
Partitions	partitions of an integer
Product	the product of the elements of a list
Rand	random integer
Seed	seed for Rand
Size	the amount of memory used by an object
Sum	the sum of the elements of a list

RATIONALS

Abs	absolute value of a number
CFApprox	continued fractions
CFApproximants	continued fractions
ContFrac	continued fractions denominators
ContFracToRat	convert continued fraction to rational
DecimalStr	convert rational number to decimal string
Den	denominator
FloatApprox	approx. of rational number of the form M*10^E
FloatStr	convert rational number to a float string
Fraction	returns the quotient of its arguments
ILogBase	integer part of the logarithm
Inverse	multiplicative inverse
IsNumber	checks if the argument is a number
IsZero	test whether an object is zero
MantissaAndExponent	convert rational number to a float
Max, Min	a maximum or minimum element of a sequence or list
Num	numerator
Product	the product of the elements of a list
Sum	the sum of the elements of a list

MODULAR INTEGERS

Fraction	returns the quotient of its arguments
Inverse	multiplicative inverse
IsNumber	checks if the argument is a number
IsZero	test whether an object is zero
Mod2Rat	reconstructing rationals from modular integers
Product	the product of the elements of a list
Sum	the sum of the elements of a list

For details look up each item by name. Online, try ?ItemName or H.Syntax("ItemName").