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 Author Comment/Response wolfgang 10/07/00 3:31pm Hello, I own both a TI-89 hand-held calculator and Mathematica for Students 4. I can't figure out how to do things with Mathematica that I can easily do with my TI-89. Here is a list of such things I would love to be able to do with Mathematica: 1. Plot a 2D or 3D graph and trace through it. That is, plot a graph and then move a cursor on the plot by little steps to see what are the values of f(x) or f(x,y) or whatever.. 2. Compute an integral graphically. On my TI-89, I can plot a 2D graph and compute the area under the curve graphically. I see the area that I want to compute getting grayed so I can see what is going on. 3. Could it be possible with Mathematica to graphically observe the integral of a 3D function? For example, if I plot a cylinder and want to compute the integral from z=2 to z=3.7, would there be a way for the cylinder part from z=2 to z=3.7 to get ''filled''? I can't do that with my TI-89. 4. Is there a quick and easy way that I can zoom on a graph plot? With my TI-89 I can quickly select a ''box'' on a region I want to zoom on and have it enlarged on the fly. 5. This I can't do with my TI-89: Plot a plane, then, plot a vector (for example, the normal vector to the plane) on the plane. All that on the same graph of course. 6. The last thing I miss from my TI-89: Is it possible to do Units conversion? With my TI-89 I can enter something like 12_ft->_m and have a conversion from 12 feet to meters. I tried Mathematica's Convert[] function but it doesn't seem to work. I entered Convert[12 Foot, Meter] and it just prints back Convert[12 Foot, Meter]. I did load that '<

 Subject (listing for 'Can Mathematica 4 do what my TI-89 do?') Author Date Posted Can Mathematica 4 do what my TI-89 do? wolfgang 10/07/00 3:31pm Re: Can Mathematica 4 do what my TI-89 do? John Leko 10/08/00 3:59pm Re: Can Mathematica 4 do what my TI-89 do? Gianni 10/16/10 08:28am
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