How to apply parameters/for loop

Question

Currently I have a program that finds the dot product of two XYZ coordinates, how would I put this into a loop, so that it goes down a list of coordinates and finds the dot prod

Answer 1

import operator

vector1 = (1, 2, 3)

# get a list of vectors
vectors = [
    (4, 5, 6),
    (7, 8, 9)
]

# for loop through the vectors,
# assignig the current vector to vector2 in every iteration
for vector2 in vectors:
    dotProduct = reduce(operator.add, map(operator.mul, vector1, vector2))
    print dotProduct

Using your l, nat and a variables:

vector1 = (int(l[0][0]), int(l[0][1]), int(l[0][2]))

for a in range(1, nat):
    vector2 = (int(l[a][0]), int(l[a][1]), int(l[a][2]))
    dotProduct = reduce(operator.add, map(operator.mul, vector1, vector2))
    print(dotProduct)