Vectors as functions!!

In [1]:

    

from plotting import plot
L = [[2, 2], [3, 2], [1.75, 1], [2, 1], [2.25, 1], [2.5, 1], [2.75,
  1], [3, 1], [3.25, 1]]
plot(L,4)


    

In [2]:

    

#Quiz 2.4.4
def addn(u, v):
    return [x+y for (x,y) in zip(u,v)]
print addn([1,2,3], [3,2,1])


    

    




[4, 4, 4]

In [ ]:

    

#Quiz 2.7.1
class Vec:
    def __init__(self, labels, function):
        self.D = labels
        self.f = function
    
def zero_vec(D):
    return Vec(D, {d:0 for d in D})
d = {1,2,3}
z = zero_vec(d)
for v in z.D:
    if v in z.f:
        print(z.f[v])


    

In [17]:

    

class Vec:
    def __init__(self, labels, function):
        self.D = labels
        self.f = function

def zero_vec(D):
    return Vec(D, {})
d = {1,2,3}
z = zero_vec(d)
for v in z.D:
    if v in z.f:
        print(z.f[v])


    

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