Agena

agena >> `The Power of Procedural Programming` 7.4.1 Rhea, April 21, 2026 - Added the new functions `dd.log2` and `dd.log10` which for a given double-to-double number compute the base-2 and base-10 logarithms, respectively. - The `antilog2` and `antilog10` operators now support double-to-double numbers, computing 2^x and 10^x, respectively. - The `^` exponentiation operator now accepts a double-to-double number as the power. The power can represent a fractional value. Example: > dd.two^dd.Pi: 8.8249778270762871 (5.3972757612210241e-016) - Added the new constant `dd.sixteen` for 16. - New `dd.isdd` checks whether all its arguments are double-to-double numbers and returns a Boolean. - New `dd.checkdd` checks whether all its arguments are double-to-double numbers and issues an error otherwise. - When given a double-to-double number, `dd.new` simply returns it instead of creating an error. - New `dd.get` returns both the high part and the low part of a double-to-double number. - `unimath` package functions now accept double-to-double numbers. Example: > unimath.zeroin(<: x -> sin(x) :>, dd.three, dd.four): 3.1415926535897931 (1.2246467991473532e-016) - `astro.locate` can now better find places in Linux, macOS and Solaris if their names include multibyte UTF-8 characters or diacritics and ligatures. The function now also allows to pass a user-defined comparison function and specific codepages and better copes with wildcards. See Chapter 11.9 for details. Example: > astro.locate('Düsseldorf*', 'DE', > finder = <: x, y -> x = y :>, codepages = [850, 852]): [[country ~ DE, elevation ~ 45, latitude ~ 51.22172, location ~ Düsseldorf, longitude ~ 6.77616, population ~ 620523, timezone ~ Europe/Bonn], [country ~ DE, elevation ~ 43, latitude ~ 51.23812, location ~ Düsseldorf-Pempelfort, longitude ~ 6.78678, population ~ 28941, timezone ~ Europe/Bonn]]