Meanwhile, bc(1) has been here all along:<p><pre><code>    wtbob@wtbob:~$ bc
    bc 1.06.95
    Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software Foundation, Inc.
    This is free software with ABSOLUTELY NO WARRANTY.
    For details type `warranty&#x27;.
    obase=16
    17281580835365214242
    EFD4823541245822
</code></pre>
Twenty-four years and it&#x27;s still working just fine!<p>edit: I can math