Casio Fx-570es Fx570es Plus 2-line Display Scientific Marix Vector Calculations Calculator with 417 Functions Limited Edition.<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Fraction calculations</li><li>Combination and permutation</li><li>Statistics (List-based STAT data editor， standard deviation， regression analysis)</li><li>9 variables / Table function</li><li>Comes with new slide-on hard case</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51mkObH4s0L.jpg" noproxy>