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Changed spelling from senond to second #13

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2 changes: 1 addition & 1 deletion Part 2 Forward Propagation.ipynb
Original file line number Diff line number Diff line change
Expand Up @@ -297,7 +297,7 @@
"cell_type": "markdown",
"metadata": {},
"source": [
"To finish forward propogation we need to propogate a two all the way to the output, yhat. We've already done the heavy lifting in the previous layer, so all we have to do now is multiply a two by our senond layer wieghts W2 and apply one more activation funcion. W2 will be of size 3x1, one weight for each synapse. Multiplying a2, a 3 by 3, by W2, a 3 by 1 results in a 3 by 1 matrix z three, the activity or our third layer. z3 has three activity values, one for each example. Last but not least, we'll apply our activation function to z three yeilding our official estimate of your test score, y Hat. "
"To finish forward propogation we need to propogate a two all the way to the output, yhat. We've already done the heavy lifting in the previous layer, so all we have to do now is multiply a two by our second layer wieghts W2 and apply one more activation funcion. W2 will be of size 3x1, one weight for each synapse. Multiplying a2, a 3 by 3, by W2, a 3 by 1 results in a 3 by 1 matrix z three, the activity or our third layer. z3 has three activity values, one for each example. Last but not least, we'll apply our activation function to z three yeilding our official estimate of your test score, y Hat. "
]
},
{
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