EXHIBIT 11.2 NEWBRIDGE NETWORKS CORPORATION COMPUTATION OF EARNINGS PER SHARE (Accounting principles generally accepted in the United States) (Canadian dollars, amounts in thousands except per share data) (Unaudited) Fiscal quarters ended Three fiscal quarters ended --------------------- -------------------------- Jan 31, Feb 1, Jan 31, Feb 1, 1999 1998 1999 1998 --------- ----------- --------- ---------- NET EARNINGS (LOSS) - U.S. GAAP Net earnings (loss), as reported, Cdn GAAP $120,119 $(144,283) $208,953 $(21,936) Write off of purchased research and development in process -- (52,762) -- (52,762) Amortization of purchased research and development in process, Cdn GAAP -- 26,381 -- 26,381 -------- --------- -------- -------- Net earnings (loss), U.S. GAAP $120,119 $(170,664) $208,953 $(48,317) ======== ========= ======== ======== EARNINGS (LOSS) PER SHARE (U.S. GAAP - BASIC) Net earnings (loss) $120,119 $(170,664) $208,953 $(48,317) ======== ========= ======== ======== Weighted average number of Common Shares outstanding during the period 177,596 175,376 176,814 174,338 ======== ========= ======== ======== Earnings (loss) per share (U.S. GAAP) $ 0.68 $ (0.97) $ 1.18 $ (0.28) ======== ========= ======== ======== EARNINGS (LOSS) PER SHARE (U.S. GAAP- DILUTED) Net earnings (loss) $120,119 $(170,664) $208,953 $(48,317) ======== ========= ======== ======== Weighted average number of Common Shares outstanding during the period 177,596 175,376 176,814 174,338 Net effect of dilutive stock options based on the treasury stock method 4,434 -- -- -- -------- --------- -------- -------- Weighted average number of Common Shares and equivalents outstanding during the period 182,030 175,376 176,814 174,338 ======== ========= ======== ======== Earnings (loss) per share (U.S. GAAP) $ 0.66 $ (0.97) $ 1.18 $ (0.28) ======== ========= ======== ======== EARNINGS (LOSS) PER SHARE EXPRESSED IN U.S. DOLLARS Daily average exchange rate of a Canadian dollar for U.S. dollars as reported by the Federal Reserve Bank of New York $ 0.6515 $ 0.7006 $ 0.6618 $ 0.7071 Earnings (loss) per share (U.S. GAAP) - Basic, in U.S. dollars $ 0.44 $ (0.68) $ 0.78 $ (0.20) ======== ========= ======== ======== Earnings (loss) per share (U.S. GAAP) - Diluted, in U.S. dollars $ 0.43 $ (0.68) $ 0.78 $ (0.20) ======== ========= ======== ======== (Page 31 of 32)