Short Introduction

The ARP/wARP input is keyworded³. For example to give the cell parameters to the program we use the keyword CELL followed by the actual numbers, for instance CELL 40.86 52.34 87.69 90 90 90
An input card may also be followed by a number of subkeywords (this should become clear on further reading). The first keyword in a file MUST BE MODE and the last one MUST BE END. Other keywords may appear in any desired order. The order of the subkeywords has no restrictions.

Different ARP/wARP modes, require different input filles and different keywords. Examples are given below. Optional keywords or subkeywords are given in square parentheses. The slash symbol (/) separates alternative subkeywords. Only the first four characters of each keyword or subkeyword (except END) are needed to actually identify it.