alleryWhich symbol did Euler introduce for summation?
AΠ (capital pi)
B∑ (sigma)
C∫ (integral)
DΔ (delta)
Answer & Solution
Correct answer: B. ∑ (sigma)
1. Euler used ∑ for summation.
2. Π is more commonly a product sign and ∫ is for integration.
3. The source lists ∑ among his notations.
_Source: Wikipedia, Mathematical notation, Modern notation_
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