Unicode: Difference between revisions

The advent of '''[[wikipedia:Unicode|Unicode]]''' solved many problems with dealing with APL [[glyph|character]]s, however there was still some wiggle room as to which Unicode [[wikipedia:code point|codepoint]] were to be used in a Unicode implementation of APL, and different implementors made different choices.  This article, which documents these differences, is adapted from an original paper by [[Bob Smith]]<ref>Smith, Bob. [http://www.sudleyplace.com/APL/APL%20Characters%20and%20Their%20Aliases.pdf APL Characters and Their Aliases]. 14 Dec 2013–25 Dec 2019. Sudley Place Software.</ref> that attempted to raise awareness of these issues because the differences impede transfer of information.

| <source lang=apl inline>*</source> || U+002A || Asterisk || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=2 | [[Exponential]] || rowspan=2 | [[Power|Power]]

| <source lang=apl inline>-</source> || U+002D || Hyphen-minus || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=2 | [[Negate]] || rowspan=2 | [[Minus]]

| <source lang=apl inline>∧</source> || U+22BD || Logical And || {{No}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}}

| <source lang=apl inline>|</source> || U+007C || Vertical line || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=2 | [[Magnitude]] || rowspan=2 | [[Residue]]

| <source lang=apl inline>~</source> || U+007E || Tilde || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=2 | [[Not]] || rowspan=2 | [[Without]]

| <source lang=apl inline>α</source> || U+03B1 || Greek small letter Alpha || rowspan=2 | || {{No}} || {{Yes}} || {{Yes}} || {{No}} || {{No}} || rowspan=2 colspan=2 | [[Left Argument]]

| <source lang=apl inline>⍺</source> || U+237A || APL functional symbol Alpha || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}}

| <source lang=apl inline>ω</source> || U+03C9 || Greek small letter Omega || rowspan=2 | || {{No}} || {{Yes}} || {{Yes}} || {{No}} || {{No}} || rowspan=2 colspan=2 | [[Right Argument]]

| <source lang=apl inline>⍵</source> || U+237A || APL functional symbol Omega || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}}

| <source lang=apl inline>∊</source> || U+220A || Small Element of || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}}

! rowspan=2 | Jot

| <source lang=apl inline>∘</source> || U+2218 || Ring operator || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=2 | [[Outer product]] || rowspan=2 | [[Beside]]/[[Beside]]

| <source lang=apl inline>≤</source> || U+2264 || Less-than or equal to || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=2 | || rowspan=2 | [[Less than or equal to|Less than or<br>equal to]]

| <source lang=apl inline>≥</source> || U+2265 || Greater than or equal to || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=2 | || rowspan=2 | [[Greater than or equal to|Greater than or<br>equal to]]

| <source lang=apl inline>⍱</source> || U+2371 || APL functional symbol down caret tilde  || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}}

| <source lang=apl inline>⍱</source> || U+2372 || APL functional symbol up caret tilde  || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}}

| <source lang=apl inline>⋄</source> || U+22C4 || Diamond operator || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=4 colspan=2 | [[Statement Separator]]

| <source lang=apl inline>⎕</source> || U+2395 || APL functional symbol Quad  || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=2 colspan=2 | [[Quad name]]

| <source lang=apl inline>○</source> || U+25CB || White circle || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || rowspan=2 | [[Pi Times]] || rowspan=2 | [[Circle function|Circular]]

Note that the last four lines will not work on a system that doesn’t support [[dfns]].