Calc & Draw - Calculator at App Store analyse

This tool combines the functionality of a scientific calculator and a curve plotter.

Key Features:

* A scientific calculator including the set of standard mathematical functions

* No limitation on the size of mathematical expressions

* A large number of keyboard shortcuts that can be displayed with the W key

* Error and warning messages indicating precisely the possible syntax errors in the writing of mathematical expressions

* A plotter which can also draw the first and second derivatives

* A generator of tables of variations, including the search of the roots

* Function composition

* Personalization of the appearance (color of each curve, ratio of graphs, brightness and zoom)

* Saving graphics (PDF and EPS formats)

* Saving tables of variations (HTML format)

* Saving documents with all functions and mathematical expressions (JSON format). These files can be saved and opened via the main menu.

AND...

A section for statistics:
* the user can enter a set of data (X,Y)
* the data can be plotted
* the user can fit the data with one of the following models:
-> Constant
-> Linear
-> Gaussian
-> Exponential
-> Parabola
-> Power
-> Logarithm

A section for complex numbers, including all standard mathematical functions