107
edits
Changes
Jump to navigation
Jump to search
→Defining new alignment structures
<context source=yes>
\startformula \startalign[n=3,align={1:right,2:middle,3:left}]
\NC v \NC = u \NC+ at \NR
\NC h \NC= ut \NC+ \frac12 gt^2 \NR
<context source=yes>
\startformula \startalign[n=4,align={1:left,2:right,3:middle,4:left}]
\NC \text{We have} \quad \NC v \NC = u \NC+ at \NR
\NC \text{and} \NC h \NC= ut \NC+ \frac12 gt^2 \NR
\definemathalignment
[gather]
[n=1,align={1:middle}]
\startformula \startgather
</context>
== Cases ==
<context source=yes text="gives">
\startformula
\delta_{ij} = f(x) = \startmathcases \NC x, 1 \NC \text{if $0 \le x \le \frac12$ } i = j \NR \NC 1-x ,0 \NC if $\frac12 \le x \le 1$ text{otherwise} \NR \stopmathcases
\stopformula
</context>
The cases environment consists of two columns, separated by {{cmd|NC}}. The second column is by default in text math mode. An alternative way of getting the same result is to define To typeset the second column as a mathcolumn with in text mode, use {{cmd|MCTC}} like so:
<texcode>
\startformula
\delta_{ij} = f(x) = \startmathcases \NC x, 1 \MC TC if \textm{if i = j} 0 \le x \le \frac12 \NR \NC 1-x ,0 \MC \text{if } \frac12 \le x \le 1 TC otherwise \NR \stopmathcases
\stopformula
</texcode>
