# Scientific Calculator

*This is a very powerful Scientific Calculator
You can use it like a normal calculator, or you can type formulas like (3+7^2)*2
It has many functions you can type in (see below)*

numbers/images/decimal.js,numbers/images/calc.js

## Examples

- Type in
**12+2*3***(=18)* - Select "deg", type in
**cos(45)***(=0.7071067811865476)* - Type in
**2/sqrt(2)***(=1.414213562373095)*

## Function Reference

A function will return **NaN** (Not a Number) when you give it invalid entries, such as sqrt(−1)

### Operators

+ | Addition operator | |
---|---|---|

- | Subtraction operator | |

* | Multiplication operator | |

/ | Division operator | |

^ | Power/Exponent/Index operator | |

() | Parentheses |

### Functions

sqrt |
Square Root of a value or expression. | |
---|---|---|

sin |
sine of a value or expression | |

cos |
cosine of a value or expression | |

tan |
tangent of a value or expression | |

asin |
inverse sine (arcsine) of a value or expression | |

acos |
inverse cosine (arccos) of a value or expression | |

atan |
inverse tangent (arctangent) of a value or expression | |

sinh |
Hyperbolic inverse sine (arcsine) of a value or expression | |

cosh |
Hyperbolic inverse cosine (arccos) of a value or expression | |

tanh |
Hyperbolic inverse tangent (arctangent) of a value or expression | |

exp |
e (the Euler Constant) raised to the power of a value or expression | |

ln |
The natural logarithm of a value or expression | |

log |
The base−10 logarithm of a value or expression | |

abs | Absolute value (distance from zero) of a value or expression | |

deg | convert radians to degrees | |

rad | convert degrees to radians | |

sign | −1 for values less than 0, otherwise 1 | |

round | round to nearest integer | |

floor | Returns the largest (closest to positive infinity) value that is not greater than the argument and is equal to a mathematical integer. | |

ceil | Returns the smallest (closest to negative infinity) value that is not less than the argument and is equal to a mathematical integer. | |

fact | factorial function |

### Constants

pi | The constant π (3.14159265...) | |
---|---|---|

e | Euler's Number (2.71828...), the base for the natural logarithm |

Note: for more digits of accuracy but less functions try the Full Precision Calculator.