isprime: MATLAB isprime function
In matlab: MATLAB emulation package

Description Usage Arguments Value Author(s) See Also Examples

Array elements that are prime numbers.

1	isprime(x)

`x`	numeric vector or matrix containing nonnegative integer values

Returns an array (or vector) the same size as x containing logical 1 (true) for the elements of x which are prime, and logical 0 (false) otherwise.

H. Borchers [email protected], P. Roebuck [email protected]

factors, primes

1
2
3

x <- c(2, 3, 0, 6, 10)
ans  <- isprime(x)	## 1, 1, 0, 0, 0
as.logical(ans)         ## true, true, false, false, false

Attaching package: 'matlab'

The following object is masked from 'package:stats':

    reshape

The following objects are masked from 'package:utils':

    find, fix

The following object is masked from 'package:base':

    sum

[1]  TRUE  TRUE FALSE FALSE FALSE