Asian shares gained on Tuesday, taking heart from Nasdaq’s fresh high, while gold prices took back some lost ground after plunging more than 4 percent to five-year lows in the previous session. “European equities are set to drift higher tracking overnight gains in the U.S. and Asia,” Jonathan Sudaria, a dealer at Capital Spreads, said in a note. MSCI’s broadest index of Asia-Pacific shares outside Japan was last up about 0.4 percent, after wavering between positive and negative territory for much of early trading.