TI-89 calculator question...

College Confidential Community
1

<p>So, I downloaded a program onto my TI-89 Titanium that can do implicit differentiations. Here's what a typical question would look like:</p>

<p><a href="http://www.ticalc.org/archives/files/ss/470/47015.gif%5B/url%5D"&gt;http://www.ticalc.org/archives/files/ss/470/47015.gif&lt;/a&gt;&lt;/p>

<p>I type it just as it is seen: x^2 + y^2 = 4</p>

<p>Yet, I've input the same data countless times and get 0 as a result. I downloaded other implicit diff. programs and I keep getting the same answer, regardless of equation. What is wrong with my calc?</p>

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<p>Cool. TI-89. I hear you can type in full algebraic equations and it tells you the answer.</p>

<p>i.e., (x/3)/(6+x)=x^2</p>

<p>... and it'll just tell you x!</p>

<p>if only i would have had that in seventh grade, during algebra 1....</p>

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<p>Eh, nevermind. It was because I had variables for x and y stored. And the program is a useful problem checker.</p>

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<p>wish i had that</p>