Over here is a recent paper on continued fractions, and I was wondering how I could format Gauss' K notation in this fashion. Here is a picture to demonstrate what I mean:
I am unsure how to format the alligned position of the + signs and ellipsis without aligning them with the vinculums of the fractions
To format the size, font, indices, etc of the K notation, I tried doing:
and experimented with
\bigg, with or without.
It seems that the size is right, but the indices are... way off. Can somebody help me, please? I have searched for some related posts (e.g. here), but amidst my search, I could not find the appropriate format I am looking for, as depicted above.
My thoughts: I think I need to install a package (e.g. amsmath) that can enhance typesetting and other facilities. I am writing a paper on Overleaf - does Overleaf come wit this package?
I am not new to TeX, but I believe this is either my first or second post. If I am doing something wrong, or failing to follow the guidelines, please let me know asap, and I will try to amend my question/post accordingly.
Thank you in advance.