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Pascal's Triangle

Tool to compute value for Pascal's triangle. Pascal's Triangle is an arithmetic list of number imagined by Blaise Pascal where each item is either 1 or the sum of the two elements above it.

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Pascal's Triangle -

Tag(s) : Mathematics,Arithmetics

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# Pascal's Triangle

## Pascal's Triangle Calculator

Tool to compute value for Pascal's triangle. Pascal's Triangle is an arithmetic list of number imagined by Blaise Pascal where each item is either 1 or the sum of the two elements above it.

## Answers to Questions

### How to create a pascal triangle?

The principle is easy, one writes 1 on the first line, and 1 1 on the second line.

For the next lines, one adds the values of the two numbers directly above.

1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1

Values can be calculated using binomial coefficient, also used in calculation of combinations.

Pascal triangle values can be compared to the Fibonacci sequence where each number is the sum of the two preceding numbers.

### How to calculate a precise value in the Pascal's triangle?

A value $$V$$ of the Pascal triangle at the position (line A, column B) can be calculated with the binomial coefficients (and thus with factorials). $$V = \ binom {A} {B} = \ frac {A!} {B! (A-B)!}$$

## Source code

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## Questions / Comments

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