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Perfect buildings: the maths of modern architecture
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equation error?
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Submitted by
Anonymous
on October 23, 2012
should your equation be z=e^(-a(x2+y2)), not z=e^(-a(x2-y2))?
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## equation error?

should your equation be z=e^(-a(x2+y2)), not z=e^(-a(x2-y2))?