Vensim建模中可以通过表函数(lookup function)来实现这一功能。 2011-3-9 5.2变量与方程 建立表函数的步骤 确定表函数中自变量和因变量 明确变量的取值变化范围,通常...
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创建返回多个值的表函数也不太困难。
Creating a table function that returns multiple values isn't much more difficult.
表函数的调用方法如下。
关于样式表函数请参阅本系列的第1部分。
See Part 1 of this series for more about stylesheet functions.
If you look in your book there's a whole table of different solutions to the Schrodinger equation for several different wave functions.
如果你们看书的话,上面有一整张,许多,不同波函数,薛定谔方程解的表。
But when you pass a parameter say, a list, you didn't think that you were not only passing the list, you were also passing the functions that operate on the list. In fact you are.
你不会认为你输入的不仅仅是链表,你还传递了处理链表的函数,实际上你正是这么做的,这往往不重要。
When you think about an int or a float or a dictionary or a list, you knew that there were functions that operated on them.
当你想到整型,浮点型,或者链表时,你知道可以用函数去处理他们,但是当你传递一个参数,例如链表。
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