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# A powerful calculator on standby.

Evaluator is a free calculator application. It runs in the background so that it's always ready when you need it. Simply hit the hotkey and start typing.

## Convenient

The modal is just a hotkey away at all times.

## Quick

Expressions are evaluated in real time as you type.

## Capable

Many operators, constants, and methods are supported.

## Cross-platform

Evaluator is available for macOS and Windows.

## App Shortcuts

Hotkey | Function |
---|---|

Alt + Space | Show / Hide |

Escape | Hide |

Shift + Escape | Recenter |

Enter | Copy Result and Hide |

Shift + Enter | Use Result as Expression |

Shift + Backspace | Clear Expression |

## Operators

Operator | Description |
---|---|

+ | Add / Unary Plus |

- | Subtract / Unary Minus |

* | Multiply |

/ | Divide |

^ | Power |

% | Modulo |

( | Begin Group |

) | End Group |

, | Separate Argument |

## Constants

Constant | Description |
---|---|

E | Euler's constant and the base of natural logarithms. |

LN2 | Natural logarithm of 2. |

LN10 | Natural logarithm of 10. |

LOG2E | Base 2 logarithm of E. |

LOG10E | Base 10 logarithm of E. |

PHI | Golden ratio. |

PI | Ratio of the circumference of a circle to its diameter. |

SQRT1_2 | Square root of 1/2. |

SQRT2 | Square root of 2. |

TAU | Ratio of the circumference of a circle to its radius. |

## Methods

Method | Description |
---|---|

ABS(x) | Returns the absolute value of a number. |

ACOS(x) | Returns the arccosine of a number. |

ACOSH(x) | Returns the hyperbolic arccosine of a number. |

ADD(x, y) | Returns the total of two numbers. |

ASIN(x) | Returns the arcsine of a number. |

ASINH(x) | Returns the hyperbolic arcsine of a number. |

ATAN(x) | Returns the arctangent of a number. |

ATANH(x) | Returns the hyperbolic arctangent of a number. |

ATAN2(y, x) | Returns the arctangent of the quotient of the arguments. |

CBRT(x) | Returns the cube root of a number. |

CEIL(x) | Returns the smallest integer greater than or equal to a number. |

COS(x) | Returns the cosine of a number. |

COSH(x) | Returns the hyperbolic cosine of a number. |

DIVIDE(x, y) | Returns the quotient of two numbers. |

EXP(x) | Returns E to the power of x. |

EXPM1(x) | Returns subtracting 1 from EXP(x). |

FACTORIAL(x) | Returns the factorial of x. |

FLOOR(x) | Returns the largest integer less than or equal to a number. |

HYPOT(x[, y[, ...]]) | Returns the square root of the sum of squares of the arguments. |

LOG(x) | Returns the natural logarithm of a number. |

LOG1P(x) | Returns the natural logarithm of 1 + x. |

LOG10(x) | Returns the base 10 logarithm of a number. |

LOG2(x) | Returns the base 2 logarithm of a number. |

MAX(x[, y[, ...]]) | Returns the largest of one or more numbers. |

MEAN(x[, y[, ...]]) | Returns the mean of one or more numbers. |

MIN(x[, y[, ...]]) | Returns the smallest of one or more numbers. |

MOD(x, y) | Returns the modulus of two numbers. |

MULTIPLY(x, y) | Returns the product of two numbers. |

POW(x, y) | Returns base to the exponent power. |

SIN(x) | Returns the sine of a number. |

SINH(x) | Returns the hyperbolic sine of a number. |

SQRT(x) | Returns the positive square root of a number. |

SUBTRACT(x, y) | Returns the difference of two numbers. |

SUM(x[, y[, ...]]) | Returns the sum of one or more numbers. |

TAN(x) | Returns the tangent of a number. |

TANH(x) | Returns the hyperbolic tangent of a number. |