Operators and Keywords
Function List:
C++ API
Return a logical array which is true where the elements of s are letters and false where they are not.
This is equivalent to (islower (s) |isupper (s)).
islower (s) |isupper (s)
See also: isdigit, ispunct, isspace, iscntrl, isalnum, islower, isupper.
Package: octave