this post was submitted on 07 Apr 2025
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A microblog post by @kareem_carr saying "as soon as i saw they were using asterisks for multiplication symbols, i knew we were in trouble", with an image from the "Office of the United States Trade Representative (Executive Office of the President)" showing the mathematical formula $\Delta \tau_i = \frac{x_i - m_i}{\varepsilon * \varphi * m_i}$. The formula show asterisks (*) instead of multiplication signs (×).

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[–] WhiteOakBayou@lemmy.world 41 points 8 months ago (20 children)

I don't get the significance. How should the formula be represented?

[–] seeaya@lemmy.world 135 points 8 months ago (7 children)

Most mathematicians, engineers, and scientists don’t use the asterisk symbol for multiplication. Most don’t write any symbol as it’s implicit. If they do use a symbol they would use a dot or x symbol (though never an actual x). In mathematics, the asterisk is mostly only used to represent convolutions.

Most common:

abc

Less common:

abc

a × b × c

Never:

a * b * c

While to most people this doesn’t really matter (and should feel free using * for multiplication). It shows someone with minimal formal experience in mathematics using this formula

[–] Pyr_Pressure@lemmy.ca 2 points 8 months ago (1 children)

I don't know, to me a * b * c is basically just the exact same as abc but just easier to type on a computer. If you were writing it down on paper or a black board they would probably use dots. Coding often uses * because who wants to type in those dots would be a pain in the ass and the * basically looks the closest to a dot.

[–] UnityDevice@lemmy.zip 7 points 8 months ago

But they weren't just "typing it on a computer", they were typesetting it in latex, and trying to make it look grandiose. But they just showed to everyone in the know that they don't know what they're doing.

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