3. Make use of what they called the delta system of number calculator. For those who aren't familiar in this, it is a JavaScript applet powerful application which is the the difference between a number and the previous number.. It has been used to operate in picking lotto numbers. This is how it works: Look for a winning lotto numbers in the past. From this, generate a new set of numbers by getting the difference of the lotto numbers from the number that precedes it. You can find more information of this by searching more about using Delta System of numbers as a tool on how to pick the winning lottery numbers.