Pascal's Triangle Introduction In mathematics, Pascal’s triangle is triangular array of binomial coefficient. below you can see how it looks like… 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 How to Build it? First of all start with “1” and second rows as “1 1” then we can clearly see every element in next rows(except 1) if sum of two elements from above row. (i.e, 1+1=2, 1+2=3, 1+3=4) and with this rules we can create pascal’s triangle of n rows. Below is visual of how it will look like, Formula let’s take 0th row as first row and 0th column as first column, so we can get each value using formula where n is row number and k is column number. so for finding 1st(0 indexed) element in 2nd row we can write 2C1 which will give 2. There is one another technique, in which we need to solve (x + y)^n for nth row, if we solve (x +y)² then we will get 2nd row as coefficient of x and y in this solved formula which is x² + 2xy + y² . coefficients are (...
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