Improvements:
- added function differentiation
- added expression browser
- completely redesigned polynomial tool
- drawing Horner schemes
- polynomials can contain up to 5 variables
- when dividing, polynomials can contain more than 1 variable
- when changing the language, all constants are automatically translated
- in the rule of three tool, the result is displayed in an edit box to make it easy to copy
- the calculation history now contains also the values of the used variables
- more efficient vertical scrolling in the function graph
- when trying to calculate a series summation/product or drawing a function graph with no function entered, an error is displayed
- program understands both goniometric function notations (tg/tan)
- pressing the CE button on the main window will delete the whole number at cursor position
Fixes:
- untranslated save button on the history form
- when changing the language multiple times during one execution, the selected language was not saved correctly