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The class "Function" takes a function as a string expression and an open interval (a,b) and calculates
- zeroes of the function
- zeroes of derivative …

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The class "Function" takes a function as a string expression and an open interval (a,b) and calculates
- zeroes of the function
- zeroes of derivative of order 1
- zeroes of derivative of order 2
- zeroes of derivative of order 3 (less accurate)
- maximum points
- minimum points
- inflection points
- special points and the limit of function (and derivatives) to these points
  The class Function has an expression evaluator,that takes a string (function) and calculates the value.     To demonstrate the use of the class there is a program in c++ which uses "Function".

I've made this program with the Qt ide,freely downloadable.This ide uses the qt libraries.
You can compile the program with this ide.
Or use the class "Function" separately. More in the instruction file. « Less