x̂ is a unit vector in the x direction
ŷ is a unit vector in the y direction

x̂ŷ   =   i   =   √-̅1̅

Z   =   x + iy

x̂Z   =   x̂x + x̂iy   =   x̂x + x̂x̂ŷy   =   x̂x + ŷy

Cool, Thanks for the useful tip.
😵