Open Source Perl Calculators for Mac

A simple command to convert calendar dates to julian dates. Quite useful in timing situations where you need elapsed time between dates. Also useful for astronomy applications.

Average is a simple and fast command-line Perl utility for calculating basic statistics on a list of numbers (one number per line). It works as a traditional Unix filter and can be used as part of those greatly useful chains of piped commands. It calculates average (arithmetic mean), standard deviation, median, total sum, minimum and maximum values present, and shows the number of processed numbers. Entry can by a text file (any column can be specified, default is the first) or directly in the terminal if Average is run without specifying a file -- in which case, input can be terminated by pressing Ctrl-D. It is possible to choose the output of a single statistic (just the value, no labels), instead of the fully detailed output (default).

Testcalc is a CGI-based calculator for diagnostic test characteristics written in Perl that displays results both numerically and graphically.

MaDiCal was developed to calculate the length of training runs or cycling tours. It loads map images in GIF format. The user first defines the map scale in one of several units and just clicks along the track. The length is calculated on the fly.

Weight Watchers Point Calculator will allow you to calculate your points from calories, grams of fiber and grams of fat.

An RPN calculator for vectors of arbitrary dimension. Supports multiple undo/redo, programmable macros and variables. Saves/loads stack to/from disk. Lots of built-in scalar, vector, stack functionality.