[scorpion]

This was my learning curve:

Variables: variable types, extern, static.
Conversion: Normalize(), DoubleToString(), etc
Function declaration: init(), start(), deinit(), etc.
Predefined variables: High, Low, Open, Close, Time, Bid, Ask, Period, etc.
Indicators: iMA(), iADX(), iRSI, iHigh(), iLow(), etc.
Custom indicator: iCustom().
Order functions: SendOrder(), CloseOrder(), DeleteOrder(), OP_BUY, OP_SELL, etc.

That should be easy