The package offers a group of amsmath-like environments:

• Equation, which is the standard equation environment, with an optional argument for a label name;
• Multiline, which is broadly similar to the amsmath multline environment, creating a pleasing layout for equations that run over several lines;
• System, for grouping a set of equations together within a left brace, with only one equation number; and
• EqSystem, similar to System, except that each equation has its own number.

All the environments have ‘*’ forms, which don't generate equation numbers.

The package also works on the standard maths environments.

The package is part of the bosisio bundle.