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.
To tell whether a number is even or odd, look at the number in the ones place. That single number will tell you whether the entire number is odd or even. 1  An even number ends in 0, 2, 4, 6, or 8. 2  An odd number ends in 1, 3, 5, 7, or 9.hey are only parts of numbers, and can be written in different ways. For example, you can't say that the fraction 1/3 is odd because the denominator is an odd number. You could just as well write that same fraction as 2/6, in which the denominator is an even number.