C1_W2_Assignment Exercise 4

Course Q&A Math for Machine Learning Linear Algebra for Machine Learning and Data Sc...
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# multiply row 0 of the new matrix A_ref by -1 and add it to the row 3
A_ref = AddRows(A_ref,0,3,-1)

how to solve this as how can i add back to row 3 there is not any function for this kindly help

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Hi @Ghulam_Nabi ,

These functions such as AddRows() and others used in ex4 should have been done in ex3. If you have not done ex3, please revisit and add the code there.

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I have done ex 3 but there is no function for this