Integer Programming (IP) is a very powerful technique for tackling problems which have a mixture of continuous and discrete activities, notably those involving scheduling. Unlike Linear Programming (LP), IP cannot simply be treated as a black box.
The Anion Gap is an approximate measurement of ions, that is molecules with a charge, either negative or positive. Sodium and potassium are positively charged and therefore called cations; this is why they are often represented as Na+ and K+ respectively.These two are the main cations measured in the blood.he Anion Gap is an approximate measurement of ions, that is molecules with a charge, either negative or positive. Sodium and potassium are positively charged and therefore called cations; this is why they are often represented as Na+ and K+ respectively.
However, routine test do not measure all types of ions. The anion gap is representative of how many ions are not accounted for by the lab measurements used in the calculation. These unmeasured ions are mostly anions, which is why the value is called the anion gap..