Determines whether characters in a string are letters of the alphabet.
c = is_letter(a)Legacy name: isletter
Matrix of Boolean values. An element in c is 1 if and only if the corresponding character of a is a lowercase or uppercase letter of the alphabet. Otherwise, the element is 0. c is a matrix of the same size as the number of characters in a.
C = is_letter('abd?PW5^&888')
C = is_letter('TEST')
Where This Node Can Run:
Desktop OS: Windows
FPGA: This product does not support FPGA devices