Arity Mod

Arity Calculator was written by Mihai Preda, and is open source. It uses the "Arity" arithmetic library.
Адаптировано для Android 4.x by Naik. Special mod for KI-14-1 :) Enjoy!

Sample expressions

simple expression: 1+2variable evaluation: pifunction evaluation: sin(0)variable definition: a=3.5function definition: f(x)=x^2-1parentheses: (1-x)^2To enter an expression cointaining letters, such as sin(x), use the ⇳ key on the basic keypad. It toggles opened/closed the letter keypad.Predefined functions

Logarithms and power

sqrt(x): square root; x^0.5cbrt(x): cube root; x^(1/3)exp(x): exponential; e^xlog(x), ln(x): natural logarithmlog2(x), lb(x): binary logarithmlog10(x), lg(x): decimal logarithmlog(base,x): arbitrary base logarithmTrigonometric
- radians

sin(x), cos(x), tan(x)asin(x), acos(x), atan(x)Trigonometric
- degrees

sind(x), cosd(x), tand(x)asind(x), acosd(x), atand(x)Hyperbolic

sinh(x), cosh(x), tanh(x)asinh(x), acosh(x), atanh(x)Other

gcd(x,y): greatest common divisorcomb(n,k): combinationsperm(n,k): permutationsmin(x,y), max(x,y)floor(x), ceil(x)abs(x): absolute valuesign(x): signumrnd(): random value from [0,1). rnd(max): random value from [0, max).gamma(x): (x-1)!mod(x,y): moduloComplex numbers

i or j is the complex base. Example:i*i(1+i)^2e^(i*pi)Operators

+
- × ÷ basic arithmetic^ power% percent! factorial# modulo√ square root' first derivativeTips

Parentheses: you may omit the leading or final parentheses, e.g. 1+2)(3+4 is valid.Multiplication: you may omit the multiplication operator when unambiguous, e.g. 3π+2(1+2)Expression continuation: starting a new expression with an operator auto-inserts ans, the result of the last expression.Clear: use the Enter key to quickly erase the whole input line.Scientific e notation: 1e3 is 1000.Angles in degrees instead of radians: use either sind(90) or sin(90deg).Use trackball Up/Down to navigate the history.Derivative

It is possible to compute the first derivative of a function with one argument using the prime notation: log'(5).The prime mark (quote) must appear immediately after the name of the function, and must be followed by open-parentheses.

The derivative may be plotted e.g. sqrt'(x).

To compute the derivative of an expression you must define the expression as a named function: E.g. f(x)=x^3+x^2+1, followed by f'(x).

Multi plot

To plot multiple functions on the same 2d graph, simply enter them on the same line separated by ";". E.g. x;x^2;2Binary, octal, hexadecimal

You can enter values in binary, octal or hexadecimal by prefixing them with 0b, 0o or 0x respectivelly, such as:binary: 0b1010octal: 0o17hex: 0x100