There are many kinds of EPS used by analysts, and they use whatever fits them most. Company filings (10K/10Q) include the GAAP EPS, and GAAP Adjusted (diluted) EPS (adjusted to the maximum potential common shares, as opposed to the actual outstanding).
However, special charges and other accounting tricks affect the GAAP results, so analysts "adjust" the reported EPS to what they think the actual real EPS is, trying to remove these distortions. The company doesn't do it in its reports, since it defeats the purpose of creating the distortions to begin with. You'll need to read through the reports and statements, find these tricks and adjust the EPS accordingly. Or read the analyst's report that's done that (based on the analyst's understanding of the tricks).