Microsoft Student Graphing Calculator is a full-featured scientific calculator with extensive graphing and equation-solving capabilities. You can use it just like a handheld calculator by clicking buttons, or you can use your keyboard to type the mathematical expressions that you want Graphing Calculator to evaluate.
*Computing standard mathematical functions, such as roots and logarithms
*Computing trigonometric functions, such as sine and cosine.
*Performing matrix and vector operations, such as inverses and cross-products.
*Computing basic statistics, such as mean and standard deviation.
*Performing operations on complex numbers.
*2D and 3D graphing in Cartesian, polar, cylindrical, and spherical coordinates..
*Numerical and symbolic equation solving.
http://www.microsoft.com/student/calculator.mspx
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