L2/07-261 |
8-aug-2007
Barbara Beeton, Asmus Freytag, and Murray Sargent III
Examining math documents and math publishers’ lists, we have found errors in the math-property assignments for the characters listed in the table below. The “math” column gives whether we think the character should have the math property, the “GC” column lists its current general category, the “TODO” column lists the proposed action, the “Reason” column gives the source for the change and the “Name” column gives the Unicode name. BB stands for Barbara Beeton of the American Mathematical Society (AMS).
Unicode |
math |
GC |
TODO |
Reason |
Name |
20E7 |
N |
Mn |
Keep as is |
BB |
COMBINING ANNUITY SYMBOL |
20E8 |
N |
Mn |
Keep as is |
BB |
COMBINING TRIPLE UNDERDOT |
20E9 |
N |
Mn |
Keep as is |
BB |
COMBINING WIDE BRIDGE ABOVE |
20EA |
N |
Mn |
Keep as is |
BB |
COMBINING LEFTWARDS ARROW OVERLAY |
20EB |
Y |
Mn |
+other math |
BB |
COMBINING LONG DOUBLE SOLIDUS OVERLAY |
2195..2199 |
Y |
So |
+other math |
TeX |
ARROW WITH STROKE..RIGHTWARDS ARROW |
219C..219E |
Y |
So |
+other math |
AMS |
LEFTWARDS WAVE ARROW..LEFTWARDS TWO HEADED ARROW |
219F..21A1 |
Y |
So |
+other math |
Commutative diagrams |
UPWARDS TWO HEADED ARROW..DOWNWARDS TWO HEADED ARROW |
21A2 |
Y |
So |
+other math |
AMS |
LEFTWARDS ARROW WITH TAIL |
21A4 |
Y |
So |
+other math |
TeX St. Mary road font |
LEFTWARDS ARROW WITH BAR |
21A5 |
Y |
So |
+other math |
Anal. to 21A4 |
UPWARDS ARROW FROM BAR |
21A7 |
Y |
So |
+other math |
Anal. to 21A4 |
DOWNWARDS ARROW FROM BAR |
21A9..21AD |
Y |
So |
+other math |
TeX/AMS |
LEFTWARDS ARROW WITH HOOK..LEFT RIGHT WAVE ARROW |
21B0..21B1 |
Y |
So |
+other math |
TeX |
UPWARDS ARROW WITH TIP LEFTWARDS.. UPWARDS ARROW WITH TIP RIGHTWARDS |
21B6..21B7 |
Y |
So |
+other math |
AMS |
ANTICLOCKWISE TOP SEMICIRCLE ARROW..CLOCKWISE TOP SEMICIRCLE ARROW |
21BC..21BD |
Y |
So |
+other math |
TeX |
LEFTWARDS HARPOON WITH BARB UPWARDS..LEFTWARDS HARPOON WITH BARB DOWNWARDS |
21BE..21BF |
Y |
So |
+other math |
AMS |
UPWARDS HARPOON WITH BARB RIGHTWARDS..UPWARDS HARPOON WITH BARB LEFTWARDS |
21C0..21C1 |
Y |
So |
+other math |
TeX |
RIGHTWARDS HARPOON WITH BARB UPWARDS..RIGHTWARDS HARPOON WITH BARB DOWNWARDS |
21C2..21C4 |
Y |
So |
+other math |
AMS |
DOWNWARDS HARPOON WITH BARB RIGHTWARDS..RIGHTWARDS ARROW OVER LEFTWARDS ARROW |
21C5 |
Y |
So |
+other math |
Wolfram |
UPWARDS ARROW LEFTWARDS OF DOWNWARDS ARROW |
21C6..21CD |
Y |
So |
+other math |
AMS |
LEFTWARDS ARROW OVER RIGHTWARDS ARROW..LEFTWARDS DOUBLE ARROW WITH STROKE |
21D0..21D1 |
Y |
So |
+other math |
TeX |
LEFTWARDS DOUBLE ARROW..UPWARDS DOUBLE ARROW |
21D3 |
Y |
So |
+other math |
TeX |
DOWNWARDS DOUBLE ARROW |
21D5 |
Y |
So |
+other math |
TeX |
UP DOWN DOUBLE ARROW |
21D6..21D9 |
Y |
So |
+other math |
Commutative diagrams |
NORTH WEST DOUBLE ARROW..SOUTH WEST DOUBLE ARROW |
21DA..21DB |
Y |
So |
+other math |
AMS |
LEFTWARDS TRIPLE ARROW..RIGHTWARDS TRIPLE ARROW |
21DD |
Y |
So |
+other math |
IEEE |
RIGHTWARDS SQUIGGLE ARROW |
21E4..21E5 |
Y |
So |
+other math |
Wolfram |
LEFTWARDS ARROW TO BAR..RIGHTWARDS ARROW TO BAR |
23B4 |
Y |
So |
+other math |
BB |
TOP SQUARE BRACKET |
23B5 |
Y |
So |
+other math |
BB |
BOTTOM SQUARE BRACKET |
23E2 |
Y |
So |
+other math |
BB |
WHITE TRAPEZIUM |
25A0..25A1 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
BLACK SQUARE.. WHITE SQUARE |
25AE..25B6 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
BLACK VERTICAL RECTANGLE..WHITE VERTICAL RECTANGLE |
25BC..25C0 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
BLACK DOWN-POINTING TRIANGLE..BLACK LEFT-POINTING TRIANGLE |
25C6..25C7 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
BLACK DIAMOND.. WHITE DIAMOND |
25CA..25CB |
Y |
So |
+other math |
TeX/AMS/AIP/… |
LOZENGE.. WHITE CIRCLE |
25CF..25D3 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
BLACK CIRCLE.. CIRCLE WITH UPPER HALF BLACK |
25E2 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
BLACK LOWER RIGHT TRIANGLE |
25E4 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
BLACK UPPER LEFT TRIANGLE |
25E7..25EC |
Y |
So |
+other math |
TeX/AMS/AIP/… |
SQUARE WITH LEFT HALF BLACK..WHITE UP-POINTING TRIANGLE WITH DOT |
25FB..25FD |
Y |
So |
+other math |
TeX/AMS/AIP/… |
WHITE MEDIUM SQUARE..WHITE MEDIUM SMALL SQUARE |
2605..2606 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
BLACK STAR..WHITE STAR |
2640 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
FEMALE SIGN |
2642 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
MALE SIGN |
2660..2663 |
Y |
So |
+other math |
TeX/AMS/AIP/… |
BLACK SPADE SUIT..BLACK CLUB SUIT |
266D..266E |
Y |
So |
+other math |
TeX/AMS/AIP/… |
FLAT, NATURAL |