Declining estrogen levels can trigger severe pain in the lower lumbar region. The lower back pain due to estrogen deficiency can best be described as excruciating pain which radiates down the buttocks and legs. The incapacitating lower back pain may also hamper every day tasks.
A Position vector is a vector that describes position of a point in space. Often the position of such a point is nothing but the x,y, and z coordinates of the point with origin as the reference point. The direction of such a vector is the arrow or...
In games, vectors are used to store positions, directions, and velocities. The position vector indicates that the man is standing two meters east of the origin, and one meter north. The velocity vector shows that in one minute, the plane moves three kilometers up, and two to the left.