I personally have never heard of PHI (1.618) and I do A-Level Maths...maybe ill get to it l8r in my course...*googles it*

hmmmmm, jus saying man if u have the start point and the middle point...why would you need to extrapulate the answer with PHI when surely the end point would be the end point multiplied by 2....ima get @ you on AIM so you can explain wachu mean...1

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