testenglish={ 'here is an answer, cribbed from the department of computer science instructors advice page. i myself welcome anyone who wants to sit in on my class, but just so you know what the official rules are. auditing is acceptable if the auditor is a student at the university of toronto, and no university resources are to be committed to the auditor. the must be a student condition means that students of other universities, employees of outside organizations or even of the university of toronto itself, or any other non students, are not permitted to be auditors. if we did not have this rule, the university would require us to collect auditing fees, and we are not willing to do that. the no resources used condition means that auditors do not get computing accounts, cannot have term work marked, and cannot write exams. in other words, they cannot use instuctors time, ta time, or administrative resources of any kind. an auditor may not attend class unless there is an empty seat after the last regularly enrolled student has sat down. that sounds frivolous, but in fact it is an aspect of an important point. if enrolment in a course has been closed because the room size has been reached, then there may well be physical seats for auditors, because it is rare for every student to appear for a lecture, but auditors will not be allowed to enrol later on in the course, even if some students drop it. neither instructors nor the department can waive this rule. often these conditions are perfectly acceptable to auditors. we do not mean to ban the practice, but only to live within the universitys rules. the first two demonstrations are simply for your enjoyment. they will not be on any tests so do not read the papers unless you want to. the third demonstration will be explained at great length towards the end of the course. you can try reading about it now, but you may find it very hard to understand before you have the necessary background. the tutorial will show how to use matlab to find'};

logprobenglish = hmmcost(testenglish, alphabet, K, E, P, Pi);