Problem of the Week: 2 by Anthony Salib | Aug 23, 2020 | Problem Solving, Pure Maths | 0 comments This one is simple! Why is called ell-infinity? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Like this:Like Loading... Related Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.