Calculators  
hp 9s Scientific Calculator The Everyday Calculator  Reduce the number of decimal places on the display to make it easier to understand the solution, or work in engineering number mode.  Edit statistics and calculate permutations, combinations, and factorials at the push of a button.  Works in a variety of system modes: rectangular and polar, or Degrees, radians, and grads. Memory stores and retrieves data; two clear memory options. 

hp 33s Scientific Calculator An impressive array of programmable scientific Functions  28 Kb user memory; rpn and algebraic dataentry modes.  Solves science, math, surveying and engineering problems quickly.  Edit, undo and delete capability.  Hp solve application allows you to write and solve equations for any variable without rewriting your original equation.  Integral calculations.  One and twovariable statistics.  Basen functions, mathematical functions, fraction mode and 40 physical constants.  Multiple memory management, linear solve and metric conversions . Powerful, twoline display with screen contrast feature. 

hp 10bll Financial Calculator The economical choice for business schools.  Essential business and maths functions.  Over 100 builtin functions for business, finances, mathematics and statistics  loan payments, interest rates, amortisation, discounted cash flow analysis and more.  Algebraic data entry.  Intuitive keyboard layout with easytoread labels 

hp 49g+ Symbolic Graphing Calculator It's all you need to invest in your future: hp's most powerful graphing calculator . 2.5 Mb total memory (512 kb ram with 2 mb flash rom) . Rpn, algebraic and textbook dataentry modes . Large, 131 x 80 pixel highcontrast screen . Four different font sizes and styles . Flash memory allows for future electronic upgrades via usb* . Computer algebra system delivers dynamic symbolic Manipulation and numeric solving . "Stepbystep" problemsolving displays . Intelligent editor isolates and evaluates subexpressions . Make statistical inferences . 3D graphing functions with interactive graphics. 
