Welcome to the Matrix ry Webpage! Matrix ry is the subject organization of mathematics students at the University of Helsinki. The organisation is known to students simply as Matrix; ry is short for registered organization in Finnish. We organize recreational activities, festivities, and events related to studying mathematics or working as a mathematician for our members. Excursions range from going to film festivals and museums to donating blood together. Matrix also organizes sports sessions at Kumpula UniSport (a sports hall and gym on campus) every other Thursday. As a member, you are free to come and play basketball, futsal, floorball, volleyball and badminton at no cost. Matrix also promotes the interests of mathematics students in decision-making at the university. Matrix ry hosts a board meeting (HalKo, from the Finnish hallituksen kokous) every few weeks. Every member of Matrix ry is welcome to attend these meetings. You can see where and when the next board meeting will be held on the front page under “Ajankohtaista”. Information on upcoming events is also posted there. Mailing lists are a convenient way to stay up to date on current events relevant to mathematics students and members of Matrix. Information about upcoming events, excursions, sports sessions and board meetings are sent to them regularly. You may be interested in joining some of the following mailing lists: matrix (at) helsinki.fi The list for every math student. The emails on this list will be about the events and parties organized by Matrix and general information for everyone in the Student Union. Also some advertisements for events organized by other Kumpula organizations will be let through the list. This is a moderated list. matrix-hallitus (at) helsinki.fi This list is only for the board of Matrix, to discuss only internal business of the board. If you want to send an email to a list, use an email address of the form list-name(at)helsinki.fi. Below we have listed the most important commands. The commands should be sent to the email address firstname.lastname@example.org. Leave the subject of the email blank and write the command on the first row of the email. Replace "list-name" by for example "matrix" or "matrix-ry", and replace "address" by your own email address. subscribe list-name address This command subscribes you to a list. Write your address only if it is not the same address from where you send this email. unsubscribe list-name address Unsubsrcribing from a list. help Gives a list of all commands info list-name Information about the list. who list-name Gives a list of all addresses on a list. This command is disabled on several lists. which address The lists to which this email address is subscribed to.