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submitted 2 months ago by [email protected] to c/[email protected]

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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[-] [email protected] 13 points 2 months ago

I'm missing something. I often use asterisk to indicate multiplication. Clearly you guys are seeing this as implying something troublesome, but I don't know what.

Of course, I also wouldn't trust me to decide tax rates, so there's that.

[-] [email protected] 45 points 2 months ago* (last edited 2 months ago)

Asterisks for multiplication are fine and normal and common in typed text. Where it's unusual is in text that's been typeset, where using things like asterisks for multiplication defeat the point of typesetting, It would be like going through all the effort to typeset an equation, but still saying sqrt(x) instead of using the square root symbol.

[-] [email protected] 17 points 2 months ago

Thanks! That is sensible. I thought it was inputting something about their methodology.

Which seems to be "ask the nearest clown car, and use the worst idea."

[-] [email protected] 7 points 2 months ago* (last edited 2 months ago)

Honestly the worst thing about this equation isn't the fact that they had poor typesetting, it was that they used decorative constants. The ε and φ values they chose just cancel out. The equation is equivalent to (xᵢ - mᵢ) / mᵢ.

[-] [email protected] 32 points 2 months ago

Asterisks are not commonly used in place of a multiplication sign when typesetting a mathematical formula

To mathematicians, it's like turning in an essay in college with wingdings as placeholders for words

[-] [email protected] 2 points 1 month ago

You gotta give them credit for actually writing it as a fraction instead of using the primary school division symbol ÷ lol

[-] [email protected] 9 points 2 months ago

I had the same question and got a lot of good answers. Link included if you're interested.

this post was submitted on 07 Apr 2025
161 points (98.2% liked)

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