Course 4 week 1. Programming Assignment: \mathrel{+}

In instructions for Exercise 5 states to use \mathrel{+} in

dW[:,:,:,c] \mathrel{+}= a_slice * dZ[i, h, w, c]

When I use it I get:

File “”, line 115
dW[:,:,:,c] \mathrel{+}= a_slice * dZ[i, h, w, c]
^
SyntaxError: unexpected character after line continuation character

It was a mistake in the notebook. There isn’t such a command “\mathrel{+}”.
Remember what you’re trying to do there, to sum over all the options. Hope this helps :slight_smile: