I have a point A(x,y,z) at time (t)=0 where A moves in a straight line with constant velocity with direction vector D(dx,dy,dz) as a function of time(t) given by A(t)=A(0)+(D.t).I could not figure out what this mean?... I have calculated the Points of A at time t as ( x+(dx * t) , y+(dy * t) , z+(dz * t) ) but this gives me wrong answers . Can any one help me derieve the equation for points of A at time t. Thanks in advance.
Actually this is for programming.I have follwed the steps to get to solution as stated in [math.stackexchange.com/a/2805278/567587] . I have to frame the point s functions correctly so that i can get the correct results. I cant figure out what is wrong.