is_prime (MathScript RT Module Function)
Owning Class: membership
Requires: MathScript RT Module
Syntax
c = is_prime(a)
Legacy Name: isprime
Description
Determines whether elements of a matrix are prime numbers. A natural number is prime if and only if the only divisors of that number are 1 and the number itself.
Inputs
| Name | Description |
|---|---|
| a | Specifies a matrix or a string. |
Outputs
| Name | Description |
|---|---|
| c | Returns a matrix of Boolean values. An element in c is 1 if and only if the corresponding element of a is prime. Otherwise, the element is 0. If a is a string, each element in c corresponds to a character in a. If a is a matrix, c is a matrix of the same size as a. If a is a string, c is a matrix with as many elements as there are characters in a. |
Examples
C = is_prime([5, 7, 6, 789])
C = is_prime('der')