An equation or different mathematical assemble is separated from a qualifying expression by a quad. Examples:
When the qualifying expression is a prepositional phrase it’s given normal sentence spacing. Examples:
The primary instance was typed as (utilizing the equation* surroundings supplied by the amsmath bundle)
start{equation*}
min_x c^Tx quad textual content{topic to $Ax=b$, $xge 0$}.
finish{equation*}
Right here, the qualifying phrase is positioned inside a textual content command, which jumps out of math mode and codecs its argument as common textual content, with the same old interword spacing in impact, and we re-enter math mode for the situations. That is higher than writing
min_x c^Tx quad textual content{topic to} ~Ax=b, ~xge 0.
with onerous areas. Observe that textual content is a command from the amsmath bundle, and it’s just like the LaTeX command mbox and the TeX command hbox, each of which work equally nicely right here.
