Once you've got them together, then you can compute the efficient portfolio frontier without the riskless asset.

当你明确了这些参数后，就可以算出没有无风险资产情况下的,有效边界了。

耶鲁公开课 - 金融市场课程节选

Doesn't need to be, so, what should I do about the upper bound here?

不必改下边界值，因此,我该对上边界值做个怎么样的改动呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

Remember, I said when we do a bisection method, we're assuming the answer lies somewhere between Well, what is the square root of a quarter? It is a half.

记住，我提过当我们用二分法的时候,我们假设答案处于,上边界和下边界之间,0。25的平方根是多少？,是0。5。

麻省理工公开课 - 计算机科学及编程导论课程节选

Do I need to change the lower bound?

我需要改下边界值么？

麻省理工公开课 - 计算机科学及编程导论课程节选