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A comment on How Did Anyone Do Math in Roman Numerals?. Parent comment

Re:How Did Anyone Do Math in Roman Numerals? by yorwba on Friday July 21, 2017 @09:42AM (#14820440)
If by (Δx)^2 you mean the finite difference (x₂-x₁)² = x₂² - 2x₂x₁ + x₁², then it isn't the same as Δ(x^2) = x₂² - x₁².

If you mean the infinitesimal difference, then Δ(x^2) = 2Δx still isn't (Δx)^2.

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