[see also: respect] We need to check that F-derivatives behave in the way we expect with regard to sums, scalar multiples and products.
[see also: consider, view] We can regard (8) as an equation for μ.
Regarded as the intersection of two quadrics, E represents......
We also discuss some intriguing open questions regarding triply periodic surfaces.
Regarding (8) [= Considering (8)], we have......