What is Infinity (U+221E)?

Infinity is the Unicode character U+221E (decimal 8734). It belongs to the Math Symbol category in the block. HTML entity: ∞

What is Proportional To (U+221D)?

Proportional To is the Unicode character U+221D (decimal 8733). It belongs to the Math Symbol category in the block. HTML entity: ∝

Compare the infinity symbol and proportional to sign -- two mathematical symbols with curved shapes that serve different algebraic purposes.

Infinity

U+221E

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Proportional To

U+221D

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