fracture 0.2.1

New features

fracture() and frac_mat() no longer return an error when receiving a vector containing NA or Inf values (#14).
- fracture(NA) now returns NA.
- fracture(Inf) now returns "Inf/1".

Fixed a bug where frac_style() would print integers in mixed fractures as "1 ⁰/₀" instead of "1" (#12).

The second argument to fracture() and frac_mat() is now ..., which must be empty. As a result, all arguments besides x must now be named. (#5)
fracture() and frac_mat() now default to a denominator of 1 when x equals 0 or 1. Previously, these would default to a denominator of max_denom. max_denom is still used as the denominator when x is 0 or 1 ± ε. (#6)

fracture() and frac_mat() gain the argument denom, which allows the user to set an explicit denominator used by all fractions. (#5)

The print() method for fractures now puts quotes around mixed fractions to increase legibility. (#7)
Updated testthat to 3rd edition. (#5)

Fixed bug where certain fractions (e.g. frac_mat(1307.36, base_10 = TRUE)) would cause an floating point rounding error.
- Reimplemented decimal_to_fraction_base_10() with double rather than int.
- Added tests to cover all base_10 fractions below 10,000/10,000 (reduced to 100/100 when testing on CRAN) and a random sample of base_10 fractions below 10,000,000/10,000,000.

frac_mat()’s max_denom should be less than the inverse square root of machine double epsilon.

Added frac_style() which formats fractures using Unicode superscripts and subscripts.
Added is.frac_mat() which tests if a matrix is formatted like the output of frac_mat().

Fixed bug where certain fractions (e.g. 16/113) would cause an integer overflow in C++.
- Reimplemented decimal_to_fraction_cont() with double rather than int.
- Added tests to cover all fractions below 1000/1000 (reduced to 100/100 when testing on CRAN) and a random sample of fractions below 10,000,000/10,000,000.
Fixed bug with fracture math where only the first element would be returned.
Added error handling for NA and infinite inputs to frac_mat().