how do I separate a one line file into 3 strings using strtok?

problem 9.15 of the textbook

[Walter Roberson]

Which textbook?

Answer 1

[Image Analyst]

See the help for it. By the way, I think allwords() by John D'Errico is a better alternative: http://www.mathworks.com/matlabcentral/fileexchange/27184-allwords