Non-GAAP income from operations for the fourth quarter of 2012 was $64.7 million, compared to $74.5 million in the fourth quarter of 2011. Non-GAAP net income for the fourth quarter of 2012 was $45.2 million, compared to $53.2 million in the fourth quarter of 2011 and non-GAAP net income per diluted share was $0.41, compared to $0.47 per diluted share in the fourth quarter of 2011. Non-GAAP income from operations and non-GAAP net income exclude charges and tax benefits related to the amortization of acquired technology and intangible assets, facilities acquisition-related adjustments, acquisition and other expenses and share-based compensation. A reconciliation of GAAP results to non-GAAP results is included below.

For the year ended December 31, 2012, revenues were $811.6 million, up from the $783.8 million in 2011. License revenues for the year ended December 31, 2012 were $321.0 million, compared to $353.7 million in 2011. Income from operations for the year ended December 31, 2012, calculated in accordance with GAAP, was $136.0 million, compared to $164.7 million in 2011. GAAP net income for the year ended December 31, 2012 was $93.2 million, compared to $117.5 million in 2011 and GAAP net income per diluted share was $0.83, compared to $1.05 per diluted share in 2011. Non-GAAP income from operations for the year ended December 31, 2012 was $212.3 million, compared to $225.1 million in 2011. Non-GAAP net income for the year ended December 31, 2012 was $147.1 million, compared to $159.9 million in 2011 and non-GAAP net income per diluted share was $1.31, compared to $1.43 per diluted share.

For the year ended December 31, 2011, earnings per diluted share was calculated on an "if converted" basis, including the add-back of $0.8 million, of interest and convertible notes issuance cost amortization, net of applicable income taxes until the redemption of the convertible notes on March 18, 2011.

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