>>> print yahoo. get_historical ('2014-04-25', '2014-04-29') [{u'Volume': u'28720000', u'Symbol': u'YHOO', u'Adj_Close': u'35.83', u'High': u'35.89', u'Low': u'34.12 ...

In this paper, we study irreducible modules over the mirror Heisenberg–Virasoro algebra D 𝔇, which is the semi-direct product of the Virasoro algebra and the twisted Heisenberg algebra. We classify ...

The mechanism of current-collection failure resulting from corrosion of front electrodes is investigated by AC impedance measurement of PV cells and modules degraded by acetic acid. In addition to our ...

A modern C++ backtesting engine for quantitative trading strategies. Supports multi-asset backtesting, SMA crossover logic, custom risk management, and detailed performance analytics (Sharpe ratio, ...