Yea Shmeddley, that's what it means. I think your getting to my question here.
If I track a planet across the sky and use Newton's math, I can determine the speed, mass and the future position of that planet.
So that's why most everyone thinks the planets, ours included, are spheres.
Is there similar system FEers use to determine a flat earth, or do FEers use the same math to come up with a flat earth?
Jroa, I used trig because you included it.