Is there a limit to the number of trial failure surfaces that can be analysed?
Effectively, no. Any number (up to around 1 billion) can theoretically be analysed within a single multiple analysis, but realistically most analyses would rarely require more than a few thousand trial surfaces to be analysed. For most situations we recommend a sequential approach of analysing say 1000-2000 trial failure surfaces initially, then reducing the search area and evaluating a further 300-500 surfaces around the critical surface (from the initial analysis), etc…
