## SYNOPSIS

**rpncalc**[-h]|[-v]|["

*expression*"]

## DESCRIPTION

*rpncalc*partially emulates a HP 28S and is intended for every-day purposes (i.e.

*1 1 +*), not for complex calculations (use

**gnuplot**(1) or

**octave**(1) for these).

*rpncalc*evaluates

*expression*if given or reads from standard input otherwise. These features are not implemented:

• complex numbers,

• vector, matrices, lists and arrays,

• algebraic input, symbolic evaluation,

• units, and

• variables.

*rpncalc*
recognizes the following functions, operations, and constants:

! | % | %ch | %t | & | * | + | - |

/ | ? | ^ | abs | acos | acosh | alog | and |

arg | asin | asinh | atan | atan2 | atanh | bin | cbrt |

ceil | char | chs | clear | cos | cosh | dec | depth |

div | drop | drop2 | dropn | dup | dup2 | dupn | erf |

erfc | exit | exp | expm | fact | floor | fp | gcd |

help | hex | hypot | inv | ip | j0 | j1 | jn |

ld | ldb | lg | lgamma | ln | lnp1 | log | max |

min | mod | neg | not | oct | or | over | pick |

pop | prec | prod | push | quit | rand | rdz | rint |

rnd | rot | shl | show | shr | sign | sin | sinh |

sl | slb | sq | sqr | sqrt | sr | srb | sum |

swap | tan | tanh | warranty | xor | y0 | y1 | yn |

| | ~ |

Delimiters are
*,*,
*;*,
*space*,
*tab *and
*newline*.

A few things have been added with respect to a HP28: the prefixes 0x resp. 0 stand for hexadecimal resp. octal constants, as in C. The Bessel Functions and the error functions are new, in order to make better use of the math library.

## OPTIONS

*-h, --help*- stands for help
*-v, --version*- prints out the current version of rpncalc and exits.

## BUGS

The floating point exception handling relies on the math library and is site- and architecture dependent.Accuracy and range of the calculations is at the mercy of the math library (and generally much worse than the original).

## AUTHOR

David Frey## NOTE

HP 28S is a trademark of Hewlett Packard Instruments.## ACKNOWLEDGMENTS AND COPYRIGHT

look into /usr/doc/rpncalc/copyright