I just got brian d. foy’s Learning Perl 6 from the library. It’s a pretty good book, though it’ll take a good few readings for some of Perl 6’s features to stick.
Since Perl 6 is built using Unicode from the ground up, it does two rather wonderful things when dealing with numbers:
- regular expressions match numerals beyond 0–9: ٤ is as much four as 4
- numeric constants can (pretty much) be expressed in terms of Unicode values in your Perl 6 source code. Assigning π to a variable does what you think it does. Dividing by ¼ is the same as multiplying by, well, ٤.
So herewith a table (probably incomplete, and very unlikely to render properly for you) of Unicode glyphs accepted by Perl 6 as numeric values:
| Value | Glyphs |
|---|---|
| -0.5 | ༳ |
| 0 | 0 ٠ ۰ ߀ ० ০ ੦ ૦ ୦ ௦ ౦ ౸ ೦ ൦ ๐ ໐ ༠ ၀ ႐ ០ ៰ ᠐ ᥆ ᧐ ᪀ ᪐ ᭐ ᮰ ᱀ ᱐ ⁰ ₀ ↉ ⓪ ⓿ 〇 ꘠ ꛯ ꣐ ꤀ ꧐ ꩐ ꯰ ０ 𐆊 𐒠 𑁦 𑃰 𑄶 𑇐 𑛀 𝟎 𝟘 𝟢 𝟬 𝟶 🄀 🄁 |
| 0.0625 | ৴ ୵ ꠳ |
| 0.1 | ⅒ |
| 0.111111 | ⅑ |
| 0.125 | ৵ ୶ ⅛ ꠴ 𒑟 |
| 0.142857 | ⅐ |
| 0.166667 | ⅙ 𒑡 |
| 0.1875 | ৶ ୷ ꠵ |
| 0.2 | ⅕ |
| 0.25 | ¼ ৷ ୲ ൳ ꠰ 𐅀 𐹼 𒑠 𒑢 |
| 0.333333 | ⅓ 𐹽 𒑚 𒑝 |
| 0.375 | ⅜ |
| 0.4 | ⅖ |
| 0.5 | ½ ୳ ൴ ༪ ⳽ ꠱ 𐅁 𐅵 𐅶 𐹻 |
| 0.6 | ⅗ |
| 0.625 | ⅝ |
| 0.666667 | ⅔ 𐅷 𐹾 𒑛 𒑞 |
| 0.75 | ¾ ৸ ୴ ൵ ꠲ 𐅸 |
| 0.8 | ⅘ |
| 0.833333 | ⅚ 𒑜 |
| 0.875 | ⅞ |
| 1 | 1 ¹ ١ ۱ ߁ १ ১ ੧ ૧ ୧ ௧ ౧ ౹ ౼ ೧ ൧ ๑ ໑ ༡ ၁ ႑ ፩ ១ ៱ ᠑ ᥇ ᧑ ᧚ ᪁ ᪑ ᭑ ᮱ ᱁ ᱑ ₁ ⅟ Ⅰ ⅰ ① ⑴ ⒈ ⓵ ❶ ➀ ➊ 〡 ㆒ ㈠ ㊀ ꘡ ꛦ ꣑ ꤁ ꧑ ꩑ ꯱ １ 𐄇 𐅂 𐅘 𐅙 𐅚 𐌠 𐏑 𐒡 𐡘 𐤖 𐩀 𐩽 𐭘 𐭸 𐹠 𑁒 𑁧 𑃱 𑄷 𑇑 𑛁 𒐕 𒐞 𒐬 𒐴 𒑏 𒑘 𝍠 𝟏 𝟙 𝟣 𝟭 𝟷 🄂 |
| 1.5 | ༫ |
| 2 | 2 ² ٢ ۲ ߂ २ ২ ੨ ૨ ୨ ௨ ౨ ౺ ౽ ೨ ൨ ๒ ໒ ༢ ၂ ႒ ፪ ២ ៲ ᠒ ᥈ ᧒ ᪂ ᪒ ᭒ ᮲ ᱂ ᱒ ₂ Ⅱ ⅱ ② ⑵ ⒉ ⓶ ❷ ➁ ➋ 〢 ㆓ ㈡ ㊁ ꘢ ꛧ ꣒ ꤂ ꧒ ꩒ ꯲ ２ 𐄈 𐅛 𐅜 𐅝 𐅞 𐏒 𐒢 𐡙 𐤚 𐩁 𐭙 𐭹 𐹡 𑁓 𑁨 𑃲 𑄸 𑇒 𑛂 𒐀 𒐖 𒐟 𒐣 𒐭 𒐵 𒑊 𒑐 𒑖 𒑙 𝍡 𝟐 𝟚 𝟤 𝟮 𝟸 🄃 |
| 2.5 | ༬ |
| 3 | 3 ³ ٣ ۳ ߃ ३ ৩ ੩ ૩ ୩ ௩ ౩ ౻ ౾ ೩ ൩ ๓ ໓ ༣ ၃ ႓ ፫ ៣ ៳ ᠓ ᥉ ᧓ ᪃ ᪓ ᭓ ᮳ ᱃ ᱓ ₃ Ⅲ ⅲ ③ ⑶ ⒊ ⓷ ❸ ➂ ➌ 〣 ㆔ ㈢ ㊂ ꘣ ꛨ ꣓ ꤃ ꧓ ꩓ ꯳ ３ 𐄉 𐒣 𐡚 𐤛 𐩂 𐭚 𐭺 𐹢 𑁔 𑁩 𑃳 𑄹 𑇓 𑛃 𒐁 𒐈 𒐗 𒐠 𒐤 𒐥 𒐮 𒐯 𒐶 𒐷 𒐺 𒐻 𒑋 𒑑 𒑗 𝍢 𝟑 𝟛 𝟥 𝟯 𝟹 🄄 |
| 3.141592653589793 | π |
| 3.5 | ༭ |
| 4 | 4 ٤ ۴ ߄ ४ ৪ ੪ ૪ ୪ ௪ ౪ ೪ ൪ ๔ ໔ ༤ ၄ ႔ ፬ ៤ ៴ ᠔ ᥊ ᧔ ᪄ ᪔ ᭔ ᮴ ᱄ ᱔ ⁴ ₄ Ⅳ ⅳ ④ ⑷ ⒋ ⓸ ❹ ➃ ➍ 〤 ㆕ ㈣ ㊃ ꘤ ꛩ ꣔ ꤄ ꧔ ꩔ ꯴ ４ 𐄊 𐒤 𐩃 𐭛 𐭻 𐹣 𑁕 𑁪 𑃴 𑄺 𑇔 𑛄 𒐂 𒐉 𒐏 𒐘 𒐡 𒐦 𒐰 𒐸 𒐼 𒐽 𒐾 𒐿 𒑌 𒑒 𒑓 𝍣 𝟒 𝟜 𝟦 𝟰 𝟺 🄅 |
| 4.5 | ༮ |
| 5 | 5 ٥ ۵ ߅ ५ ৫ ੫ ૫ ୫ ௫ ౫ ೫ ൫ ๕ ໕ ༥ ၅ ႕ ፭ ៥ ៵ ᠕ ᥋ ᧕ ᪅ ᪕ ᭕ ᮵ ᱅ ᱕ ⁵ ₅ Ⅴ ⅴ ⑤ ⑸ ⒌ ⓹ ❺ ➄ ➎ 〥 ㈤ ㊄ ꘥ ꛪ ꣕ ꤅ ꧕ ꩕ ꯵ ５ 𐄋 𐅃 𐅈 𐅏 𐅟 𐅳 𐌡 𐒥 𐹤 𑁖 𑁫 𑃵 𑄻 𑇕 𑛅 𒐃 𒐊 𒐐 𒐙 𒐢 𒐧 𒐱 𒐹 𒑍 𒑔 𒑕 𝍤 𝟓 𝟝 𝟧 𝟱 𝟻 🄆 |
| 5.5 | ༯ |
| 6 | 6 ٦ ۶ ߆ ६ ৬ ੬ ૬ ୬ ௬ ౬ ೬ ൬ ๖ ໖ ༦ ၆ ႖ ፮ ៦ ៶ ᠖ ᥌ ᧖ ᪆ ᪖ ᭖ ᮶ ᱆ ᱖ ⁶ ₆ Ⅵ ⅵ ↅ ⑥ ⑹ ⒍ ⓺ ❻ ➅ ➏ 〦 ㈥ ㊅ ꘦ ꛫ ꣖ ꤆ ꧖ ꩖ ꯶ ６ 𐄌 𐒦 𐹥 𑁗 𑁬 𑃶 𑄼 𑇖 𑛆 𒐄 𒐋 𒐑 𒐚 𒐨 𒑀 𒑎 𝍥 𝟔 𝟞 𝟨 𝟲 𝟼 🄇 |
| 6.5 | ༰ |
| 7 | 7 ٧ ۷ ߇ ७ ৭ ੭ ૭ ୭ ௭ ౭ ೭ ൭ ๗ ໗ ༧ ၇ ႗ ፯ ៧ ៷ ᠗ ᥍ ᧗ ᪇ ᪗ ᭗ ᮷ ᱇ ᱗ ⁷ ₇ Ⅶ ⅶ ⑦ ⑺ ⒎ ⓻ ❼ ➆ ➐ 〧 ㈦ ㊆ ꘧ ꛬ ꣗ ꤇ ꧗ ꩗ ꯷ ７ 𐄍 𐒧 𐹦 𑁘 𑁭 𑃷 𑄽 𑇗 𑛇 𒐅 𒐌 𒐒 𒐛 𒐩 𒑁 𒑂 𒑃 𝍦 𝟕 𝟟 𝟩 𝟳 𝟽 🄈 |
| 7.5 | ༱ |
| 8 | 8 ٨ ۸ ߈ ८ ৮ ੮ ૮ ୮ ௮ ౮ ೮ ൮ ๘ ໘ ༨ ၈ ႘ ፰ ៨ ៸ ᠘ ᥎ ᧘ ᪈ ᪘ ᭘ ᮸ ᱈ ᱘ ⁸ ₈ Ⅷ ⅷ ⑧ ⑻ ⒏ ⓼ ❽ ➇ ➑ 〨 ㈧ ㊇ ꘨ ꛭ ꣘ ꤈ ꧘ ꩘ ꯸ ８ 𐄎 𐒨 𐹧 𑁙 𑁮 𑃸 𑄾 𑇘 𑛈 𒐆 𒐍 𒐓 𒐜 𒐪 𒑄 𒑅 𝍧 𝟖 𝟠 𝟪 𝟴 𝟾 🄉 |
| 8.5 | ༲ |
| 9 | 9 ٩ ۹ ߉ ९ ৯ ੯ ૯ ୯ ௯ ౯ ೯ ൯ ๙ ໙ ༩ ၉ ႙ ፱ ៩ ៹ ᠙ ᥏ ᧙ ᪉ ᪙ ᭙ ᮹ ᱉ ᱙ ⁹ ₉ Ⅸ ⅸ ⑨ ⑼ ⒐ ⓽ ❾ ➈ ➒ 〩 ㈨ ㊈ ꘩ ꛮ ꣙ ꤉ ꧙ ꩙ ꯹ ９ 𐄏 𐒩 𐹨 𑁚 𑁯 𑃹 𑄿 𑇙 𑛉 𒐇 𒐎 𒐔 𒐝 𒐫 𒑆 𒑇 𒑈 𒑉 𝍨 𝟗 𝟡 𝟫 𝟵 𝟿 🄊 |
| 10 | ௰ ൰ ፲ Ⅹ ⅹ ⑩ ⑽ ⒑ ⓾ ❿ ➉ ➓ 〸 ㈩ ㉈ ㊉ 𐄐 𐅉 𐅐 𐅗 𐅠 𐅡 𐅢 𐅣 𐅤 𐌢 𐏓 𐡛 𐤗 𐩄 𐭜 𐭼 𐹩 𑁛 𝍩 |
| 11 | Ⅺ ⅺ ⑪ ⑾ ⒒ ⓫ |
| 12 | Ⅻ ⅻ ⑫ ⑿ ⒓ ⓬ |
| 13 | ⑬ ⒀ ⒔ ⓭ |
| 14 | ⑭ ⒁ ⒕ ⓮ |
| 15 | ⑮ ⒂ ⒖ ⓯ |
| 16 | ৹ ⑯ ⒃ ⒗ ⓰ |
| 17 | ᛮ ⑰ ⒄ ⒘ ⓱ |
| 18 | ᛯ ⑱ ⒅ ⒙ ⓲ |
| 19 | ᛰ ⑲ ⒆ ⒚ ⓳ |
| 20 | ፳ ⑳ ⒇ ⒛ ⓴ 〹 ㉉ 𐄑 𐏔 𐡜 𐤘 𐩅 𐭝 𐭽 𐹪 𑁜 𝍪 |
| 21 | ㉑ |
| 22 | ㉒ |
| 23 | ㉓ |
| 24 | ㉔ |
| 25 | ㉕ |
| 26 | ㉖ |
| 27 | ㉗ |
| 28 | ㉘ |
| 29 | ㉙ |
| 30 | ፴ 〺 ㉊ ㉚ 𐄒 𐅥 𐹫 𑁝 𝍫 |
| 31 | ㉛ |
| 32 | ㉜ |
| 33 | ㉝ |
| 34 | ㉞ |
| 35 | ㉟ |
| 36 | ㊱ |
| 37 | ㊲ |
| 38 | ㊳ |
| 39 | ㊴ |
| 40 | ፵ ㉋ ㊵ 𐄓 𐹬 𑁞 𝍬 |
| 41 | ㊶ |
| 42 | ㊷ |
| 43 | ㊸ |
| 44 | ㊹ |
| 45 | ㊺ |
| 46 | ㊻ |
| 47 | ㊼ |
| 48 | ㊽ |
| 49 | ㊾ |
| 50 | ፶ Ⅼ ⅼ ↆ ㉌ ㊿ 𐄔 𐅄 𐅊 𐅑 𐅦 𐅧 𐅨 𐅩 𐅴 𐌣 𐩾 𐹭 𑁟 𝍭 |
| 60 | ፷ ㉍ 𐄕 𐹮 𑁠 𝍮 |
| 70 | ፸ ㉎ 𐄖 𐹯 𑁡 𝍯 |
| 80 | ፹ ㉏ 𐄗 𐹰 𑁢 𝍰 |
| 90 | ፺ 𐄘 𐍁 𐹱 𑁣 𝍱 |
| 100 | ௱ ൱ ፻ Ⅽ ⅽ 𐄙 𐅋 𐅒 𐅪 𐏕 𐡝 𐤙 𐩆 𐭞 𐭾 𐹲 𑁤 |
| 200 | 𐄚 𐹳 |
| 300 | 𐄛 𐅫 𐹴 |
| 400 | 𐄜 𐹵 |
| 500 | Ⅾ ⅾ 𐄝 𐅅 𐅌 𐅓 𐅬 𐅭 𐅮 𐅯 𐅰 𐹶 |
| 600 | 𐄞 𐹷 |
| 700 | 𐄟 𐹸 |
| 800 | 𐄠 𐹹 |
| 900 | 𐄡 𐍊 𐹺 |
| 1000 | ௲ ൲ Ⅿ ⅿ ↀ 𐄢 𐅍 𐅔 𐅱 𐡞 𐩇 𐭟 𐭿 𑁥 |
| 2000 | 𐄣 |
| 3000 | 𐄤 |
| 4000 | 𐄥 |
| 5000 | ↁ 𐄦 𐅆 𐅎 𐅲 |
| 6000 | 𐄧 |
| 7000 | 𐄨 |
| 8000 | 𐄩 |
| 9000 | 𐄪 |
| 10000 | ፼ ↂ 𐄫 𐅕 𐡟 |
| 20000 | 𐄬 |
| 30000 | 𐄭 |
| 40000 | 𐄮 |
| 50000 | ↇ 𐄯 𐅇 𐅖 |
| 60000 | 𐄰 |
| 70000 | 𐄱 |
| 80000 | 𐄲 |
| 90000 | 𐄳 |
| 100000 | ↈ |
| 216000 | 𒐲 |
| 432000 | 𒐳 |
| Inf | ∞ |
So the title of this post really is accepted as a valid Perl 6 expression in the REPL:
$ perl6 To exit type 'exit' or '^D' > 𒐳 / ༳ == ( ⑽ - 𐹭 ) * ( 𒐲 / 𐅉 ) True
What does it evaluate to? Well:
- 𒐳 ‘CUNEIFORM NUMERIC SIGN SHAR2 TIMES GAL PLUS MIN’ represents 432000
- ༳ ‘TIBETAN DIGIT HALF ZERO’ represents -½
- ⑽ ‘PARENTHESIZED NUMBER TEN’ represents 10
- 𐹭 ‘RUMI NUMBER FIFTY’ represents 50
- 𒐲 ‘CUNEIFORM NUMERIC SIGN SHAR2 TIMES GAL PLUS DISH’ represents 216000
- 𐅉 ‘GREEK ACROPHONIC ATTIC TEN TALENTS’ represents 10.
Definitely into just because you can doesn’t mean you should territory, and a feature to make the Pythonistas reach for the Zantac again, poor dears.