wxMaxima 17.xx ubuntu installation

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In case you have the same problem I had, here's how one installs maxima (normal method, i.e., type it and it tells you the "sudo ... " command necessary). Then to install the graphical shell, follow the instructions below, copied from a query board: "Use this PPA: https://code.launchpad.net/~peterpall/+archive/ubuntu/wxmaxima-nightlies and reinstall wxmaxima using the instructions which follow: sudo add-apt-repository ppa:pet5erpall/wxmaxima-nightlies sudo apt update sudo apt install wxmaxima " Good luck