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.