Project 82: Unit Vectors

Intro Problem: Suppose you leave your house and walk 6 miles west and 2 miles south to a park.

What direction is the park (in degrees) from your house?

When we are only concerned with the direction of a vector, oftentimes we will use something called a unit vector (which means it has magnitude 1)

A Unit Vector (or directional vector) is a vector with magnitude 1.  It is helpful when we are most concerned with the direction of a vector.  A Unit vector with the same direction as the vector above would be <-6/sqrt(40), -2/sqrt(40)> or <-.9487, -.3162>.  

Project 82: Variables 'x' and 'y' have been initialized.  These variables represent the x-y components of a vector.  

Task: Appropriately initialize the values 'unitX' and 'unitY' which represent a unit vector with the same direction as the vector given.

Note: The following trig methods are available.

cosine(x) 

sine(x) 

tangent(x) 

cosineInverse(x)

sineInverse(x)

tangentInverse(x)

**If your code works for 5 test cases, you can enter your e-mail address

Universal Computational Math Methods:

pow(5,2) returns 25.0

abs(-3.0) returns 3

sqrt(49.0) returns 7.0