v1 = PVector(5, 7)
v2 = PVector(2, 3)

println('{} {} {} {}\n'.format( v1.x, v1.y, v1.mag(), v1.heading()))

# math overloaded operators (static methods in the comments)
println(v1 + v2) # PVector.add(v1, v2)
println(v1 - v2) # PVector.sub(v1, v2)
println(v1 * 11) # PVector.mult(v1, 11)
println(v1 / 2)  # PVector.div(v1, 2)
println('')

# object methods (related augmented assigment in the comments)
println(v1.sub(v1))  # v1 -= v1; println(v1)
println(v1.add(v2))  # v1 += v2; println(v2)
println(v1.mult(10)) # v1 *= 10; println(v1)
println(v1.div(10))  # v1 /= 10; println(v1)