the.com/asymptote
The line a curve flirts with forever but never agrees to meet.
means A straight line that a curve approaches infinitely closely without ever actually touching it.
from From Greek asymptotos, meaning not falling together — a- (not) plus sympiptein (to coincide), coined by mathematicians for lines that refuse to collide.
Three flavorsHorizontal, vertical, and slanted oblique varieties exist.
Crossing allowedCurves can cross asymptotes, just not at infinity.
Beyond mathUsed for goals approached but never reached.