Finding a unit vector

Finding a vector with a specified direction and length

Finding a unit vector in the same direction as a given vector

Finding the component form for a linear combination of the standard unit vectors

Finding a vector given its length and angle with the positive x-axis

Finding the directional derivative to a function of two variables at a given point and direction

Finding the directional derivative to a function of two variables at a given point and direction

Finding a directional derivative and gradient vector for a function of two variables

Finding the directional derivative to a function of two variables at a given point and direction