Changes

To tell TeX that an expression needs to be typeset using conventions for math, type the expression in <code>$</code>...<code>$</code>. For examples <code>$x$</code> gives <context>\setuplayout[scale=0.8]$x$</context>, while <code>$2$</code> gives <context>\setuplayout[scale=0.8]$2$</context>. Notice that the ''x'' is in italic while the ''2'' is upright. This is the usual mathematic convention. You can also write in the math mode using the command <cmd>math</cmd> or <cmd>mathematics</cmd>.