interlude.

in case you've been wondering, dear readers, i decided to take an impromptu few days' off.

the bulk of the maths i've done lately has been the use of trigonοmetry and isοperimetry .. in the sense that i've been doing a little hiking and keeping count of elevation.

strange: on the way up, i always focus on the trail;
while on the way down, i tend to think about maths.