Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator
There is no vertical (or otherwise) asymptote feature on a TI84PLUS. It
seems to you that the calculator is drawing the asymptote. However
when you plot a CONNECTED Graph a line is drawn from one point to the
next: The last point on one side of the asymptote is thus connected to
the first point on the other side, effectively mimicking the drawing of
To get rid of this spurious effect, draw dotted graphs, but you will see fewer points, because the points are drawn at constant intervals in X. This is set by the Xres variable, in the Window configuration screen.
Here is a function that will "show" you a vertical asymptote on the TI84PLus, when graph is drawn connected, but on a calculator with a higher resolution, you see none. A calculator cannot handle infinity. You can with the help of your mind's sight, so to speak, see the asymptote on the graph.
Posted on Aug 20, 2010
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Posted on Jan 02, 2017
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