I have problems fixing the regularization for the first codding lab of the second Week

This is not a problem I am having, quite the opposite. My code passes the regularization test, but the intended output for the regularization Term is 28.09, while my function returns 27.00. This is very confusing to me.

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Her is a screenshot

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The Vectorised implementation given by the lab also returns 27, while it says that 28.09 is expacted

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There is an error in your code for cofi_cost_func().

It passes the unit tests that are public_tests.py : test_cofi_cost_func(), but it does
not pass the tests that are built into the notebook.

All of these tests use different data and conditions. Your code has a defect under the conditions used in the notebook.

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Can you elaborate on that? I still passed the grading system, wouldn´t that be the build in tests

No, the grader has its own separate tests.

The values shown in the notebook for the “Expected Output” are correct:

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One thing to check - have you modified the notebook’s file name?

The grader doesn’t like that. It will always grade the notebook that has the original file name.