**Ostermiller Basic and Scientific Calculator**

Scientific Expression or Formula Calculations. Twenty Transaction Memory and Tape, Different bases like Decimal and Octal, Logic Math, Functions, Constants.

Deriving knowledge and inspiration from ostermiller.org. The GUI and Skin Modifications were done by me. Calculator Widget

Screenshot

It has Brackets to build your own math equation. Scientific Functions like Trigonometric, Hyperbolic, Logarithmic.Memory (cookies), A Paper Trail or Tape for Equation and Result History.

## Help Documentation

## Constants

ans | The last calculated result |

PI | pi = 3.14159265... |

E | e = 2.71828182... |

LOG2E | log of e base 2 |

LOG10E | log of e base 10 |

LN2 | log of 2 base e |

LN10 | log of 10 base e |

SQRT2 | square root of 2 |

SQRT1_2 | square root of 1/2 |

## Functions

abs(a) | the absolute value of a |

acos(a) | arc cosine of a |

asin(a) | arc sine of a |

atan(a) | arc tangent of a |

atan2(a,b) | arc tangent of a/b |

ceil(a) | integer closest to a and not less than a |

cos(a) | cosine of a |

exp(a) | exponent of a |

floor(a) | integer closest to and not greater than a |

log(a) | log of a base e |

max(a,b) | the maximum of a and b |

min(a,b) | the minimum of a and b |

pow(a,b) | a to the power b |

random() | pseudorandom number in the range 0 to 1 |

round(a) | integer closest to a |

sin(a) | sine of a |

sqrt(a) | square root of a |

tan(a) | tangent of a |

From - Scientific Calculator by Stephen Ostermiller at ostermiller.org

delabs creations for iGoogle 2005

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