This is a script I made to enable me to be able to combine either something non-alcoholic with something alcoholic and know how much to add (easy on a calculator) but then also to be able to deal with two alcoholic drinks and know how much of the second one will be needed to get to a desired strength (much much harder to figure out). It runs through by adding the second alcoholic liquid in increments of 0.5 ml until it meets exactly or the first number that exceeds the desired strength. It simplifies the whole process since it just tries all the combinations rather that doing complicated math