Приложения разработчика NIXON в Android Market

Plottron (v. 1.22)

NIXON опубликовал приложение 2011-09-22
(обновлено 2013-07-21)

It's extreme graphing. A graphing calculator with 3D.
Free version also available.

2D: Functions, Parametric Relations, Polar graphs
-Algebra: Zero, Max/Min, Intersect
-Calculus: Derivatives, Tangent lines, Integrals

3D: Functions, Parametric Surfaces
-Lighting, augmented reality mode

-Touch panning/scrolling
-Tracing w/Derivative
-Tables

Scientific Calculator:
-Live calculation: evaluate expressions as you type
-Fractions
-Complex (imaginary) numbers (a+bi or polar)
-Probability distribution functions (PDF)
-Numerical derivative/integral
-Expression history
-Physical and chemical constants
-User-defined variables

RPN Calculator:
-Unlimited stack
-Copy and swap
-Statistics (mean, deviation, etc.)

Tips:
-sto() function may be used for infinite series/mathematical induction, Newton's Method, etc.

Notes:
-When tracing functions with fractional powers, tangent line is reversed for negative x-values.
-Odd-numbered roots with real solutions are evaluated as a real number (e.g.: (-8)^(1/3) = -2), unlike other calculators, and computer algebra systems such as Wolfram.

GestureKeys (v. 1.4)

NIXON опубликовал приложение 2010-12-13
(обновлено 2010-12-13)

Now with word suggestions, vibration, and COLEMAK layout. A compact and clever gesture keyboard. Shift, Space, Enter, and Backspace buttons are replaced with gestures.

Press and hold on a key to show related symbols. (Applies to some keys)

Drag up = Shift
Drag right = Space
Drag down = Enter
Drag left = Backspace

Eval (v. 2.2)

NIXON опубликовал приложение 2010-11-25
(обновлено 2011-09-15)

An advanced scientific calculator with support for complex numbers and fractions. Free graphing calculator also available.

Features:
- Complex (imaginary) numbers (a+bi or polar form)
- Probability distribution functions (binomial, chi-square, Gaussian (normal), geometric, inverse Gaussian, Poisson, Student-T PDF)
- Cumulative PDFs (CDF)
- Numbers stored internally as fractions
- Mixed/improper fractions
- Function integrals and numerical derivatives
- Live Calculation: evaluate expressions as they are entered
- Trigonometric functions for complex numbers
- nCr and nPr (Combinations and permutations)
- Degrees, radians, or gradians
- Haptic feedback
- Unlimited expression history
- Physical and chemical constants
- User-defined variables

NOTES:
- To change the display mode (fraction, polar, etc.), click on an evaluation.
- To use internal fractions, press the Divide [÷] key instead of entering decimals. For example, press [1][÷][4] instead of 0.25.
- Improper fraction mode will display mixed fractions if they're approximated. It will only display improper fractions when they can be used internally.
- Decimals up to 5 places will be converted to internal fractions.
- For more information, go to Menu > Settings, then Help and Information or Enumeration of Functions.