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difference-of-squares: tidy up description #545

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stkent merged 1 commit into from
Feb 12, 2017
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difference-of-squares: tidy up description #545

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15 changes: 6 additions & 9 deletions exercises/difference-of-squares/description.md
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Original file line number Diff line number Diff line change
@@ -1,12 +1,9 @@
The square of the sum of the first ten natural numbers is,
The square of the sum of the first ten natural numbers is
(1 + 2 + ... + 10)² = 55² = 3025.

(1 + 2 + ... + 10)**2 = 55**2 = 3025

The sum of the squares of the first ten natural numbers is,

1**2 + 2**2 + ... + 10**2 = 385
The sum of the squares of the first ten natural numbers is
1² + 2² + ... + 10² = 385.

Hence the difference between the square of the sum of the first
ten natural numbers and the sum of the squares is 2640:

3025 - 385 = 2640
ten natural numbers and the sum of the squares of the first ten
natural numbers is 3025 - 385 = 2640.