Casio FX-991MS Scientific Calculator
<table border="0" width="509" cellspacing="0" cellpadding="0"><tbody><tr><td width="24"><img src="//edu.casio.com/images/spacer.gif" width="24" height="1" onerror="this.src='https://edu.casio.com/images/spacer.gif'; $(this).attr('onerror','');" ></td><td width="323" valign="top"><table border="0" width="323" cellspacing="0" cellpadding="0"><tbody><tr><td class="title">Two way power<br>401 Functions / Dot Matrix /<br>2-Line Display / 10+2 Digits / Plastic Keys</td></tr><tr><td class="mediumbold">Multi-replay function , Matrix calculations , Equation calculations , Vector calculations , Differential calculations , SOLVE function</td></tr><tr><td><img src="//edu.casio.com/images/spacer.gif" width="1" height="10" onerror="this.src='https://edu.casio.com/images/spacer.gif'; $(this).attr('onerror','');" ></td></tr><tr><td><img src="//edu.casio.com/images/dot_line_323px.gif" width="323" height="1" onerror="this.src='https://edu.casio.com/images/dot_line_323px.gif'; $(this).attr('onerror','');" ></td></tr><tr><td><img src="//edu.casio.com/images/spacer.gif" width="1" height="5" onerror="this.src='https://edu.casio.com/images/spacer.gif'; $(this).attr('onerror','');" ></td></tr><tr><td><div class="function"><ul><li>• 2-line display</li><li>• Fraction calculations</li><li>• Integration calculations</li><li>• Combination and Permutation</li><li>• Statistics<br><span class="small">(STAT-data editor, Standard deviation, Normal distribution calculations, Regression analysis)</span></li><li>• Base-n calculations / conversions</li><li>• Logical operations</li><li>• Complex number calculations</li><li>• CALC memory</li><li>• Engineering symbol calculations</li><li>• 40 scientific calculations</li><li>• 40 metric conversions(20 conversion pairs)</li><li>• 9 variable memories</li><li style="text-align: left;">• Comes with slide-on hard case</li></ul></div></td></tr></tbody></table></td></tr></tbody></table>