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http://education.ti.com/educationportal/sites/US/productDetail/us_derive6.html

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• Texas Instruments Derive™ 6 from US & CANADA
  A powerful Computer Algebra System, Derive can easily solve a wide range of symbolic and numeric problems. Results can be plotted as 2-D graphs or 3-D color surfaces, enabling different approaches to problem solving.
  define derive entry expression files infinite matrix plot plots productdetail surfaces toolbars unicode values worksheets
  By narky in Educational > Mathematics > Software with computer derive mathematics maths powerful software solve solving

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