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Problem: Sum of Consecutive Positive Integers

Deduce a closed formula for the sum of arithmetic progression $$1+2+3+\ldots+n$$ using the fundamental theorem of the difference calculus.

Table of Contents

Solutions: 1

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References

Bibliography

  1. Miller, Kenneth S.: "An Introduction to the Calculus of Finite Differences And Difference Equations", Dover Publications, Inc, 1960