释义 |
integer constraint The requirement that a variable be a whole number. This is often a nuisance in economics, as it prevents the use of calculus, and hence is often ignored. Integer constraints are sometimes important: for example, in considering the number of firms in an industry, if there are actually 371, it does no noticeable harm to use calculus which suggests that there should be 371.23; but if there are 2 firms, it is nonsense to assume there are 2.47. |