Thread 'How To find path if we only know velocity (without common formulation)?' Good day! I invented the condition And that i consider to resolve it: Let we only know velocity of going particle: ##v(t)## from ##t=a## to ##t=b##. To limit the action or influence of by or as if https://gabletoppak.com/water-in-a-sustainable-box-the-future-of-eco-friendly-hydration/