Random

random()

random(Integer)

random(Real)

random(Integer, Integer)

random(Real, Real)

Returns a random number in the interval $(0,1)$.

Given an integer $n$, returns a random integer number in the interval $[0,n)$ (if $n$ is positive) or $(n,0]$ (if $n$ is negative).

Given a real $x$, returns a random real number in the interval $[0,x)$ (if $x$ is positive) or $(x,0]$ (if $x$ is negative).

Given two integers numbers $a$ and $b$, returns a random integer in the interval $[a,b]$.

Given two real numbers $a$ and $b$, returns a random real number in the interval $[a,b]$.