The Newton Schulz method is well-known, and the proof of convergence is widely available on the internet. Yet the derivation of the method itself is more obscure. Here it is:
The Newton Schulz iteration for matrix inversion
The Newton Schulz iteration for matrix…
The Newton Schulz iteration for matrix inversion
The Newton Schulz method is well-known, and the proof of convergence is widely available on the internet. Yet the derivation of the method itself is more obscure. Here it is: