Matrix Elements That are Prime Numbers

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Matrix Elements That are Prime Numbers

Syntax	`isprime(`x`)`
See Also	ceil , floor , roundoff , int , mod

Description
Returns a logical valued matrix that has the same dimensions as x containing true for the elements of x that are prime and false otherwise.

Example




     isprime(1:1:11)'

returns




     [ F , T , T , F , T , F , T , F , F , F , T ]