| Date | Page | What changed |
|---|---|---|
| #2010-08-16 | Number representations Times of day Bytes | First version on old website
Numeric representations had positional notation; English, Spanish, and German number names; scientific notation, Roman numerals, medieval numbers, sexagesimal, and upside-down Times (now no longer linked) had factors, color, seconds, percent, vectors Bytes/charset had binary, hexadecimal, base64, ASCII/Latin-1, UTF-8, UCS-2 (actually UTF-16, but I didn't know JavaScript used UTF-16) Original existed but wasn't linked anywhere |
| #2010-08-21 | Bytes | Some explanation, UCS-2 Little Endian, EBCDIC |
| Text | New page; had normal, morse, and upside-down | |
| #2010-09-08 | Times of day | Added Súiⱥcúili times |
| #2013-11-18 | Number representations | Limited the length of unary numbers (to prevent crashes) |
| Text | Added "Music" and transliterations section (Greek, Katakana, Hiragana), and some Caesar ciphers (rot-n and atbash)
Added audio for Morse code Fixed bug where I switched & and ' in upside-down | |
| #2013-12-09 | Time zones | New page; included various time zones and mean solar time (then called "sun time") |
| #2013-12-23 | Vectors | New page |
| #2013-12-24 | Number representations | Converting negative numbers to Spanish now says it's not supported rather than incorrectly converting to English |
| Times of day | Fixed mixing up AM/PM | |
| #2014-01-09 | Functions | New page; allowed adding, subtracting, composing, and making parametric curves from lines, parabolas, and sine curves |
| #2014-03-14 | Text | Added Devanagari transliteration |
| #2014-03-24 | Functions | Added "custom expression" option (uses eval) |
| #2014-04-05 | Measurements | New page; had lengths, SI prefixes, bits and bytes, angles, times, and frequencies |
| #2014-07-11 | Phonetics | New page |
| #2014-07-14 | Text | Added Klingon transliteration |
| #2014-07-30 | Text | Added Cherokee and Hangul transliteration
Made the text boxes bigger Hopefully fixed Klingon's font (forgot to upload a file...) |
| #2014-10-11 | Text | Added Soundex |
| #2014-11-11 | Functions | Added more options (draw a function; multiply, divide, derivative, antiderivative) |
| #2014-11-24 | Times of day | Allow entering a time, rather than just using the current time (I thought I'd already done that a long time ago...) |
| #2015-03-03 | Number representations | Added fractions and English ordinals
Changed everything to use rational numbers. In case that causes problems, the previous version is still available. |
| #2015-05-01 | "Everything" formula | New page |
| Measurements | Added areas, volumes, and a few more lengths | |
| Bytes | Added MacRoman | |
| #2015-05-17 | Number representations | Added factorial base (and recursive factorial) |
| Measurements | Added unusual and astronomical lengths
Added petahertz, exaherts, tempo markings, note names, audio, and time-based frequency units Added an option to add/subtract/multiply/divide/raise to a power the current number Added more specific sources in the footer | |
| #2015-07-08 | Dates | New page |
| Measurements | Added temperature | |
| Number representations | Added Fouriest transform, Chinese numbers, and more buttons to change the current number | |
| Times of day | Removed the link, since most of it is just arbitrary stuff using the numbers in the time | |
| #2015-08-04 | First version on chridd.nfshost.com | |
| Number representations | Added factors | |
| #2015-09-16 | Time zones | Changed "sun time" to "mean solar time", since I think that's more accurate to what I was actually calculating. |
| #2015-09-20 | "Everything" formula | Added a reset button and buttons to perform mathematical operations on y |
| #2015-09-22 | Added a description to the top of the main page | |
| #2015-09-30 | Measurements | Added a picture to the angle section and the "n-gon" subsection
Added other temperature units to the temperature differences section (including Planck temperature) |
| #2015-11-11 | Bytes | Changed labels from saying "UCS-2" to "UTF-16" and added a note that the UTF-8 conversion wouldn't work for some characters, because I hadn't realized before that JavaScript strings were UTF-16 |
| Changed titles of a bunch of things | ||
| #2015-12-08 | Dates | Made the Gregorian calendar work with older dates and added the Julian calendar and Julian day |
| #2016-01-25 | Latitude/longitude distance | New page |
| #2016-02-01 | Kaufman decimals | New page |
| #2016-03-15 | Phonetics | Increased the height for the IPA text field |
| #2016-03-23 | Number types | New page; had real numbers, complex numbers, quaternions, and ordinals |
| #2016-04-08 | Number types | Added IEEE floating point, extended real number line, projective real number line, and cardinals |
| #2016-04-22 | Changed external links from http: to https: throughout my site whenever possible | |
| #2017-06-15 | Number representations | Added quote notation, Fibonacci coding, and continued fractions
Changed the ordinary positional notation section to allow each row's options to be changed (instead of having everything be fixed and just one "other" row) Moved sexagesimal to the ordinary positional notation section and made it so any base above 36 will act like sexagesimal Removed "upside down" (which was just calculator writing) |
| #2017-09-12 | Number types | Added p-adic numbers, modular arithmetic, and 2-element boolean algebra
Added square roots Switched the precedence of multiplication and division Added the ability to post comments |
| #2017-10-02 | Number types | Added natural numbers, integers, split-complex numbers, dual numbers, the circle group, and supernatural numbers
Added the ability to see multiple number types at once Added log-base, absolute value, complex conjugate ( conj), gcd, and lcm operators, and e_n notation for entering complex-like numbers
|
| #2017-12-01 | Measurements | Added some less serious temperature systems (Felsius, radians C, radians F)
Fixed the spelling of "Celsius", which apparently has an "s" and not another "c". Added the ability to post comments |
| #2017-12-01 | Measurements | Changed it to use rationals internally, which should hopefully make rounding errors less common |
| #2018-11-12 | Measurements | Added °M
Fixed the spelling of Felsius |
| #2018-12-02 | Reorganized my site so most of this is available from the new math page (changed breadcrumbs, added a note about the reorganization).
Added the ability to post comments to many/all(?) pages | |
| #2019-12-07 | Number types | Made multiplication and division the same precedence |
| #2020-06-07 | Added this version history page
Changed xkcd forum links to point to the web archive :( | |
| Bytes | Made UTF-8 work for characters over U+10000 and added UCS-4 | |
| #2020-11-30 | Dates | Added qntm's zero-indexed calendar |
| #2020-12-25 | Dates | Added "days of Christmas" |
| #2021-02-16 | Making change | New page |
| #2021-02-17 | Measurements | Added °T and heximal time from Tab Completion Added decimal time |
| #2021-05-22 | Number representations | Many changes; this page now has its own version history page |
| #2021-06-08 | Number types | Added octonions and sedenions Added a multiplication table for hypercomplex number types |
| Measurements | Made it so the "Click each beat" thing automatically resets after a certain amount of time has passed | |
| Text | Fixed a formatting error that I introduced with the numeral systems update | |
| Moved everything that's not already on my math page to some other page
Made sure that every page on here links to this version history and has comments enabled | ||
| #2021-07-27 | Number types | More operations for p-adic numbers: integer power, exponents, logarithms, and now square roots work for p = 2 |
| Moved the main conversion and calculation page to the "Old and obsolete stuff" section, and re-added Times of day | ||
| #2021-08-23 | Numerals | Added some more binary-related systems and square root representations, and an options to enter/display infinitely-repeating continued fractions; more info on its own version history page |
| #2021-11-30 | Number types | Added polynomials |
| #2024-03-15 | Dates | Added the Kalends/Nones/Ides system |
| #2024-03-23 | Permutations | New page |