Can I have some help in Practice lab 2 - Exercise 1

Course Q&A Machine Learning Specialization Unsupervised Learning, Recommenders, Reinforcement
1

hey there I need some help in UNQ_C2

the function

def sq_dist(a,b):
“”"
Returns the squared distance between two vectors
Args:
a (ndarray (n,)): vector with n features
b (ndarray (n,)): vector with n features
Returns:
d (float) : distance
“”"
### START CODE HERE ###

### END CODE HERE ###     
return (d)

can anyone guide me through this

2

Hi @EitharOqayli
Check the hit will guide you well!

3

Could you please tell me how you will calculate the squared distance for these two vectors?

a = [1, 2, 3, 5,]
b = [2, 0, 2, 3,]

I hope to know the steps in details. If you are not sure about the maths operation, please read the description in the assignment. You don’t need to code here, and I only need a description on how you will manipulate these 8 numbers to get to the answer, and what the answer is.

Raymond

4

I will subtract them to get the difference then square and then sum them over , so it would be like 1+4+1+4 = 10

6

You deleted it. I guess you find the problem?

8

no it was a spelling mistake, still struggling with it

9

Sorry, would you please delete the post again? We don’t share assignment code here.

Also, what happen when you put it into the exercise and run it? Any error?

10

yes I received an error

11

And what is it? Can you share a screenshot of only the error?

12

I did restart the kernel and run all cells , it worked thankssss

13

Great. I am closing this thread then.

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