Diagram of simple filtration: oversize particles in the feed cannot pass through the lattice structure of the filter, while fluid and small particles pass through, becoming filtrate.
An odd function can be identified by replacing both the x and y values with -x and -y values. If the values in your equation are the opposite (positives are negatives and negatives are positives), then the function is odd. Take, for example, this equation y = x^2.
The formula for finding the product of any odd number of consecutive integers follows the pattern of coefficients in Sloane's A008955. If the number of numbers is 2k+1, where k=0,1,2,..., then we can define a function P odd (k,n) as the product of 2k+1 numbers in which the middle number is n.otice that this sum is always odd. Each of the consecutive numbers can be represented as (n+m)/2, where m is an odd number that ranges from -2k+1 to 2k-1. That is, P even (k,n)=(n-2k+1)/2 (n-2k+3)/2 ...