primes lists of primes up to a given number

## Syntax

    y = primes(x)

## Arguments

x

  real scalar

y

  vector

## Description

Given a real `x`, `primes(x)` returns in a vector `y` all the prime numbers in `[2, x]`. If `x<2` then `primes(x)` returns an empty matrix.

## Examples

    primes(35)

    --> primes(35)
     ans  =
       2.   3.   5.   7.   11.   13.   17.   19.   23.   29.   31.

## See also

- factor