About this app

All in one calculator
---------------------

PROBLEMS? BUGS? QUESTIONS? =MAIL ME= and we will fix :)

Simple calculator: Standard functions with memory. Ability to use BigDecimal for unlimited precision.

Base-N calculator: Standard functions, logical operators (AND,OR,XOR,NAND,NOR,XNOR,NOT,SHL,SHR,ROL,ROR), decimal, hexadecimal, octal, binary and arbitrary radix, precision options (8,16,32,64,128 bits).

Scientific calculator: Standard functions including:
* Output format simple, scientific or fixed-digit floating point numbers.
* Standard complex number functions.
* Constants.
* Variable list.
* Step execution.
* Statistic calculators (including deviation, sums etc) for both real and complex numbers.
* Undo/Redo.
* Trigonometry: sin, arcsin, sinh, arcsinh, cos, arccos, cosh, arccosh, tan, arctan, tanh, arctanh for both real and complex numbers, in DEG RAD or GRA. Also Polar <-> Rectangular conversions.
* Parentheses and nesting support.
* Fraction conversions.
* Power functions (pow, sqrt, x^y, log, log10, e^x), for both real and complex numbers.
* Permutations and Combinations for big integers.
* Other functions: invert, x!, hhmmss to decimal, absolute value (or magnitute for complex numbers or determinant for matrices).
* Matrix functions: Define a matrix (any dimensions), add,subtract, multiply, determinant, transform and invert.
* Vector functions: Define a vector (any dimensions), add, subtract, internal and external product.
* Integrals: Can integrate an expression by using known integration methods and given limits.
* Sums: Calculate sum of an expression
* Solver: Solves f(x) = 0 for expression using known solver methods.

Plotter: Can plot 2D functions using AndroidPlot.

Experimental functions:
* differentiation


Unimplemented functions (yet):
* complex arcsin/arccos/arctan and sinh cosh tanh.
* Solver methods.
* limits.
* 3D plotter.

Libraries:

* Apache Common Library - http://commons.apache.org/math/
* AndroidPlot - http://androidplot.com
* PayPal - http://www.paypal.com

Permissions:

Internet + Phone State: So Paypal Donation can work.

New features

Can be moved to SD.

App Permissions

Allows applications to open network sockets.
Allows applications to access information about networks.
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.