If I start with an integral as the area under a curve.
And imagine that I colour it in with straight lines.
Then sum these lines.
Is this a useful way of visualising integrals?
i.e. converting 2 dimensions into 1.
Can anyone use this concept in any other integral questions?
(e.g. integrals involving trig functions, or e etc.)
(I know the word line is sloppily used here).