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<p>produced its first graphing calculator in 1986, with <a href="page.php?w=Hewlett-Packard">Hewlett Packard</a> following in 1988, and <a href="page.php?w=Texas_Instruments">Texas Instruments</a> in 1990.</p>

<p><big> Features </big></p>
<p><big> Computer algebra systems </big></p>
<p>Some graphing calculators have a <a href="page.php?w=computer_algebra_system">computer algebra system</a> (CAS), which means that they are capable of producing symbolic results. These calculators can manipulate algebraic expressions, performing operations such as factor, expand, and</p><p>
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<a accesskey="3" href="page.php?w=graphing_calculator&amp;p=4">3.Next</a>
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