Units contains utilities for converting units of measure
conversions | //! # UNTESTED #
//! # strings need replacement
//!
//! This contains conversion factors for commonly used units. Instead of
//! having a very large number of functions for each conversion, there is
//! just one big hashmap. The entries for all items into the hashmap all have
//! the same format:
//!
//!
//! ((&str,&str),f64)
//! (("from units","to units"),1.0)
//! (("meter","foot"),3.2)
//!
//!
//! That is, the key in the hashmap is a tuple of string slices in the order
//! of units you are converting from to the unit you are converting to. Units
//! are always in the singular, lower case, with no special characters. Units
//! with exponents have the exponent named first, ie "square foot" or
//! "cubic meter". Units should be written as they are typically pronounced in
//! English, such as "pound per square inch". In cases where units are multiplied
//! such as torque (ie foot-pound) the units are hyphenated.
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