Why gradients are same?

[gent.spah]

They are not the same, this is the general overseeing formula but in each case the prediction and ground truths are different!

As far as I remember Prof Andrew explains them in detail but if not then check in google to find the gradients for each case, but surely they are not the same!

Here look at this post from one of our mentors:

Summary and the derivations of gradients for linear regression and logistic regression

Hello! This post first tabulates the gradients for a linear regression problem and a logistic regression problem. For those who are interested and are familiar with differentiation and chain rule, the derivation steps for the gradients are also shown after the table. For the sake of comparing the derivation steps, I have made the second table. One important take-away is that the gradients for the linear regression and the logistic regression do look the same which can be proven by the derivat…

@rmwkwok great job here, thank you!