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A comment on Is the era of the $100 graphing calculator coming to an end?. Parent comment

Re:Is the era of the $100 graphing calculator coming to an end? by toomanybeersies on Monday September 23, 2019 @09:23PM (#21055550)
You can also just do matrices by hand. I always found them quite easy once you got the hang of them, very easy and methodical.
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Re:Is the era of the $100 graphing calculator coming to an end? by girvo on Monday September 23, 2019 @09:51PM (#21055706)
That was the first thing my tutor taught me in Grade 11, in preparation for Maths C (via distance education, that was fun). Still use that ability today, along with a fair bit of algebra and simple regressions
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