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# FP2 Iteration Videos? watch

1. Hi everyone,

So I'm really struggling with iteration for fp2 and I just don't understand chapter 8 and 9 ( Approximations and Newton Raphson). I can't even find a video on Iterations at all and none of the revision sheets are helping explaining. Can someone send me a link to a website where I can get a better understanding of it.

Some of my Problems:

1. Think I understand the concept of error = Alpha - X. Don't know how to use it in practical terms

2. Have no idea on how to find the number of iterations required.

2. (Original post by ChemBoy1)
Hi everyone,

So I'm really struggling with iteration for fp2 and I just don't understand chapter 8 and 9 ( Approximations and Newton Raphson). I can't even find a video on Iterations at all and none of the revision sheets are helping explaining. Can someone send me a link to a website where I can get a better understanding of it.

Some of my Problems:

1. Think I understand the concept of error = Alpha - X. Don't know how to use it in practical terms

2. Have no idea on how to find the number of iterations required.

Please post an example question, preferably with those things in it and your working.

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