1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
\environment math-layout
\startcomponent math-definitions
\startchapter[title=Definitions]
\startsection[title=Special stackers]
There are many math symbols but never enough. Here is an example of how you can
roll out your own. We start out with nothing:
\startbuffer
\definemathstackers
[nosymbol]
[voffset=\zeropoint,
hoffset=\zeropoint,
mathclass=ord,
topoffset=\zeropoint,
middlecommand=,
color=maincolor]
\stopbuffer
\typebuffer \getbuffer
You can now use this class of stackers:
\startbuffer
\startformula
\mathover [nosymbol] {"2217} {A}
\mathover [nosymbol] {"2218} {A}
\mathover [nosymbol] {"2219} {A}
\stopformula
\stopbuffer
\typebuffer
This looks like this:
\getbuffer
But we want proper math, which means an an italic nucleus, a properly placed
accent, a shift of that accent matching the slope or the nucleus, so we actually
need:
\startbuffer
\definemathstackers
[mysymbol]
[voffset=-.30\mathexheight,
hoffset=\zeropoint,
mathclass=ord,
topoffset=.4\mathemwidth,
middlecommand=\mathematics,
color=maincolor]
\stopbuffer
\typebuffer \getbuffer
\startbuffer
\startformula
\mathover [mysymbol]{"2217} {A}
\mathover [mysymbol]{"2218} {A}
\mathover [mysymbol]{"2219} {A}
\mathunder [mysymbol] {"2217}{A}
\mathunder [mysymbol] {"2218}{A}
\mathunder [mysymbol] {"2219}{A}
\mathdouble[mysymbol]{"2217}{"2217}{A}
\mathdouble[mysymbol]{"2218}{"2218}{A}
\mathdouble[mysymbol]{"2219}{"2219}{A}
\stopformula
\stopbuffer
We show both over and under variants:
\typebuffer
So this time we get:
\getbuffer
We can now redefine the \quote {interiorset} symbol to use
\type {0x2217} instead of \type {0x2218}:
\startbuffer
\definemathover[mysymbol][interiorset]["2217]
\startformula
\interiorset{A}^{\interiorset{A}^{\interiorset{A}}}
\stopformula
\stopbuffer
\typebuffer
Of course normally you will not use color:
\getbuffer
\stopsection
\stopchapter
\stopcomponent
|
