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APL characters render oddly in some fonts.
+⌿÷≢ +⌿÷≢

0.1+-×÷⌈⌊*⍟|!○~∨∧⍱⍲<≤=≥>≠.@≡≢⍴,⍪⍳↑↓?⍒⍋⍉⌽⊖∊⊥⊤⍎⍕⌹⊂⊃∪∩⍷⌷∘→←⎕⍞/⌿\⍀À¨⍣&⍨⌶#⊆⍥⊣⊢⍠⍤⌸⌺⍸()[];⍝⋄:⍬{}∇
0.1+-×÷⌈⌊*⍟|!○~∨∧⍱⍲<≤=≥>≠.@≡≢⍴,⍪⍳↑↓?⍒⍋⍉⌽⊖∊⊥⊤⍎⍕⌹⊂⊃∪∩⍷⌷∘→←⎕⍞/⌿\⍀À¨⍣&⍨⌶#⊆⍥⊣⊢⍠⍤⌸⌺⍸()[];⋄:⍬{}∇⍝

0.1+-×÷⌈⌊*⍟|!○~∨∧⍱⍲<≤=≥>≠ .@≡≢⍴,⍪⍳↑↓?⍒⍋⍉⌽⊖∊⊥⊤⍎⍕⌹⊂⊃∪∩⍷⌷∘→←⎕⍞/⌿\⍀À¨⍣&⍨⌶#⊆⍥⊣⊢⍠⍤⌸⌺⍸()[];⋄:⍬{}∇⍝


≢ often renders as ≡/

Samples:

> **APL** (named after the book _A Programming Language_)^[2]^ is a programming language developed in the 1960s by Kenneth E. Iverson. Its central datatype is the multidimensional array. It uses a large range of special graphic symbols^[3]^ to represent most functions and operators, leading to very concise code. It has been an important influence on the development of concept modeling, spreadsheets, functional programming,^[4]^ and computer math packages.^[5]^ It has also inspired several other programming languages.^[6][7]^

xtimes←{⎕IO←0  ⍝ Fast multi-digit product using FFT.
roots←{×\1,1↓(⍵÷2)⍴¯1*2÷⍵}
cube←{⍵⍴⍨2⍴⍨2⍟⍴⍵}
extend←{(2*⌈2⍟¯1+(⍴⍺)+⍴⍵)↑¨⍺ ⍵}
floop←{(⊣/⍺)∇⍣(×m)⊢(+⌿⍵),[m-0.5]⍺×[⍳m←≢⍴⍺]-⌿⍵}
FFT←{,(cube roots⍴⍵)floop cube ⍵}
iFFT←{(⍴⍵)÷⍨,(cube+roots⍴⍵)floop cube ⍵}
rconvolve←{(¯1+(⍴⍺)+⍴⍵)↑iFFT⊃×/FFT¨⍺ extend ⍵}
carry←{1↓+⌿1 0⌽0,0 10⊤⍵}
(+/∧\0=t)↓t←carry⍣≡0,⌊0.5+9○⍺ rconvolve ⍵
}