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| Elements: The area of any rectangle . . . Is half of the sum of the squares of the two sides subtract the square of the difference between the two sides.
Is this just a tautology or is there something interesting here?
(The square of any right angled triangle will be half this again). Which is the same as these:
n.b. In these I had given (b-a) the value of d and (c-b) the value of e n.b. the "square of the difference", the element which is being removed here, is what was required for "completing the square" |
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Previously published:All 28 blog entries Here are some of the ideas that I have been exploring.
Please let me
know if there's anything you want to correct/find interesting/would like
a copy of - or to purchase/participate in etc. |  |
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