### Possible Answer

Here ∂ is a rounded d called the partial derivative symbol. To distinguish it from the letter d, ∂ is sometimes pronounced "tho" or "partial" In general, ... - read more

The character ∂ (html element: ∂ or ∂, unicode: U+2202) or is a stylized d mainly used as a mathematical symbol to denote a partial derivative such as ... - read more

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