inverse function command

08032022, 05:26 PM
(This post was last modified: 08032022 05:33 PM by jonmoore.)
Post: #17




RE: inverse function command
(08032022 04:19 PM)Albert Chan Wrote:(08022022 12:22 PM)jonmoore Wrote: What the OP was asking for, is an equivalent of the DrInv command on the TI86 It's so easy that it wasn't possible on the 48GX without a bespoke program that relied on parametric plotting! The inverse of a function algebraicly ends is just the same. The graphical representation ends up plotting the y values on the x axis and the x values on the y axis. That's why it's such a useful insight for students studying precalculus. Here's a Desmos example (and don't forget we're talking about high school students here). https://www.desmos.com/calculator/oxmgrvftez Things of course become more complicated as the complexity of the functions increases (complex functions obviously don't play nicely on the cartesian plane). BTW it's not a 45 degree rotation, it's a reflection. 

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