Zetta- Zetta- Zetta is a decimal unit prefix in the metric system denoting a factor of 10 or . The prefix was added as an SI prefix to the International System of Units (SI) in 1991 and has the symbol Z. Zetta is evocative of the Latin numeral , meaning "seven". Therefore it was used to denote the seventh power of 1000. A prefix of the same value, "hepta", was informally introduced a few years before the promulgation of zetta. It was formed from the Greek (), also meaning "seven". "Hepta" never received official sanction and is obsolete. Zeta (), although
Exa Corporation total revenues and Adjusted EBITDA in fiscal year 2012 increased 21% and 51%, respectively, compared with fiscal year 2011. Exa reported $61.4 million in total revenue for the full year fiscal 2015. The company's total revenue is expected to be in the range of $64.7 million to $67.0 million for the full year fiscal 2016. The Exa corporate headquarters are located in Burlington, Massachusetts. The company also has U.S. offices in Livonia, Michigan and Brisbane, California, along with offices in Europe and Asia. Exa's European headquarters are located in Paris, France, and it also has European offices in Germany, Italy