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**Jhevon** well, as you may be able to tell, this is just a reformulation of good ol' fashioned trigonometry. if you pay close attention, you will notice that these "laws" he is referring to, are things like Pythaogoras' theorem, the law of sines, the law of cosines, etc. he just calls them by different names and use different elements in the formula. for instance, see what happens if you replace "spread of two lines" with "the sine of the angle between the two lines", you will notice that spread is talking about the old sine = opposite/hypotenuse ratio. so it is really familiar trig in a new light. as for the advantages of this new formulation, i am not aware of what they are, but i am sure there are some, or else no one would waste time coming up with it