what is wrong with my newton code? file attached

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What is wrong with my newton code? file is attached.

Accepted Answer

Roger Stafford
Roger Stafford on 19 Feb 2018
There are three things that need correcting
1. There is no need for the i=1 and i=i+1 commands. The 'for' does all that.
2. You need a test for abs(h) <= tol. If it is true, you should do a 'break' to get out of the for-loop at that point.
3. The value 'maxiter' is set way too low. Set it to a much higher value. It serves only as a guard against a loop that is caught in an endlessly infinite cycling.

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