Error in week 3 logistic regression exercise

Course Q&A Machine Learning Specialization Supervised ML: Regression and Classification
1

i keep getting this error, whats the cause?

coursera logistic regression error
coursera logistic regression error1077×421 22.7 KB

2

Hi @paulxhibit77 ,

For this test, the input is a scalar value, your code should be able to deal with input that is a single scalar value as well as an array. So please check your implementation. Have you follow the formula correctly? $$ 1+ 1/𝑒^−z $$ should have a bracket around.