Pascal’s triangle: Difference between revisions

From Elliptic Curve Crypto
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→‎Notation: off by one?
 
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== Notation ==
== Notation ==


<math>n \choose k</math> is the mathematical symbol for the ''k''<sup>th</sup> entry of the ''n''<sup>th</sup> row of '''Pascal’s triangle'''.
<math>n \choose k</math> is the mathematical symbol for the ''k''<sup>th</sup> entry of the ''n''<sup>th</sup> row of '''Pascal’s triangle''', (counting from zero!)


:<math>{n\choose k} = \frac{n!}{k!(n-k)!}</math>
:<math>{n\choose k} = \frac{n!}{k!(n-k)!}</math>


:<math>{n\choose k} = {n-1\choose k-1}+{n-1\choose k}</math>
:<math>{n\choose k} = {n-1\choose k-1}+{n-1\choose k}</math>

Latest revision as of 03:22, 28 December 2024

1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
1 6 15 20 15 6 1
1 7 21 35 35 21 7 1
1 8 28 56 70 56 28 8 1
1 9 36 84 126 126 84 36 9 1
1 10 45 120 210 252 210 120 45 10 1

Notation

is the mathematical symbol for the kth entry of the nth row of Pascal’s triangle, (counting from zero!)