Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Casio fx 991 ES PLUS feature

  1. Sep 3, 2015 #1
    How can we solve equation with 4 variables in this calculator?
    For 3 it solves in equation mode. Or the 4x4 matrix is not there?

    Can the calculator show graphs?
  2. jcsd
  3. Sep 3, 2015 #2


    User Avatar
    Education Advisor
    Gold Member

    4x4 matrix is NOT there. Nor are there any graphing features, the dot matrix display allows for viewing equations.
    Last edited: Sep 3, 2015
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook