Calculator 2.4 [免費版]

basic calculator, scientific calculator and graphing calculator, it also allows you to DIY your own calculator.Sample expressionssimple expression: 1+2variable evaluation: pifunction evaluation: sin(0)variable definition: a=3.5function definition: f(x)=x^2-1parentheses: (1-x)^2You can call the function by simple input f(xxx), for example, if you define a function `f(x,x1) = x + x1`, and if you input `f(2,3)`, the result will be `5`.Predefined functionsLogarithms and powersqrt(x): square root; x^0.5curt(x): cube root; x^(1/3)log(x), ln(x): natural logarithmlog10(x), lg(x): decimal logarithmlog(base,x): arbitrary base logarithmTrigonometric - radianssin(x), cos(x), tan(x)asin(x), acos(x), atan(x)Trigonometric - degreessind(x), cosd(x), tand(x)asind(x), acosd(x), atand(x)Hyperbolicsinh(x), cosh(x), tanh(x)asinh(x), acosh(x), atanh(x)Othergcd(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 numbersi or j is the complex base. Example:i*i(1+i)^2e^(i*pi)Operators+ - × ÷ basic arithmetic^ power! factorial# modulo√ square root' first derivativeTipsParentheses: 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.DerivativeIt 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 plotTo plot multiple functions on the same 2d graph, simply enter them on the same line separated by ";". E.g. x;x^2;2Binary, octal, hexadecimalYou can enter values in binary, octal or hexadecimal by prefixing them with 0b, 0o or 0x respectively, such as:binary: 0b1010octal: 0o17hexa: 0x100if you want to display the result in binary, octal, hexadecimal, click the menu `DEC` in the calculator.

• 07/19/2016: Calculator 2.4
• Report a new version