#Calculus and Graph Transformation
20 messages · Page 1 of 1 (latest)
this looks like a euler spiral to me
essentially you just plot parametrically the antiderivatives of cos(f(t)), sin(f(t))
to see if this converges, calculate (probably numerically) the improper integrals
,,\int_0^{\infty} cos(f(a)) \text{ and } \int_0^{\infty} sin(f(a))da
ren
these are not always guaranteed to exist i believe
however I don't believe in general this type of graph is what you describe as a spiral whose rotation is "proportional to the function".
if you calculate the rate of change of the angle
,,\frac{d\theta}{dt} = \frac{d}{dt}arctan(\frac{y(t)}{x(t)}) \text{ you do not recover } f(t)
ren
Looks like the Fresnel integrals
Yes that's exactly what the euler spiral is
Well but I want to recover f(t)
So not really a euler spiral ig