A. We also use in order that and so that to talk about a purpose. Compare: n She stayed at work late in order/so as to complete the report, and ■1 She stayed at work late in order that/so that she could complete the report, (not ...in order that/so that to complete the report.) So that is more common than in order that, and is used in less formal situations.
B.In formal contexts, such as academic writing, we can use such that to introduce a result: n The model was designed such that the value of x could be calculated. (= 'in a way that has the result that...'; or ...in order that...; or ...so that...) Less formally we can also use in such a way that or in such a way as + to-infinitive with a similar meaning: T The advertisement is printed in such a way that two very different pictures can be seen depending on how you look at it.
Considering the bold parts, I think we could interchangeably use either in order that or so that in two different circumstances-- purpose or introducing a result.
But, if we would like discern between those, then we should say:
so that, in order that, in such a way that,and in a way that are used for introducing a result.
so that, in order that, in doing so are used for showing a purpose.
Am I right?
Of course, I meant just so that not so... that.
So to speak, I am wondering the reason why there has been written so that twice. Does so that mean two different meanings?