# Drawing a simple vector field issue

by mr_coffee
Tags: drawing, field, issue, simple, vector
 P: 1,629 Hello everyone i'm not sure if this is right or not... If i have F(x,y,z) = zj; where j is the vector, j hat. Would that be all vectors are going to be pointing up if you assume z is up, and are in the y plane? If the coordinate sytem is, z is up, y is to the right, and x is pointing at you. If i had F(x,y,z) = yj; the answer is, No vectors emanate from the xz plane since y = 0 there. In each plane y = b, all the vectors are identical.
 Sci Advisor HW Helper Thanks P: 25,228 No. j is a unit vector pointing in the same direction as the +y axis. Which you seem to want to call 'right'. The length of the vectors is proportional to their z coordinate. What is the 'y plane'? What does 'in' a plane mean? Parallel to?
 P: 1,629 I worked it out and it seems the vectors are pointing parrallel to the +y axis which is pointing right, for values > 0, and for values < 0 its pointing to the left or in the -y direction.