Project Euler
Problem 1
x=[]
for i in range(1000):
if i%3==0 or i%5==0:
x.append(i)
x=np.array(x) #turns list into numpy array
y=np.sum(x)
print y
Problem 2
i=1
j=1
y=[]
while True:
k=i+j
if k>4e6:break
i=j
j=k
if k%2==0:y.append(k)
print sum(y)