Python

matrix processing for python: NumPy and SciPy.
optimized tools: NumPy

方括号[...]定义一个列表,圆括号(...)定义一个元组,花括号{...}定义一个字典:
a = [ 1, 3.4, 'hello' ] # A list
b = ( 10, 20, 30 ) # A tuple
c = { 'a': 3, 'b':42 } # A dictionary