I'm programming some financial software needing to program not very complicated mathematical formulas.
After writing the code, it is not readable anymore - i.e - you can't easily discern what was the original formula.
What would be a good way to program mathematical formulas so they could be easily read later on?
For example, programming a calculation for a loan with a fixed interest rate:
(TotalValue*monthlyInterest*Math.pow((1+monthlyInterest),totalPayments))/(Math.pow((1+monthlyInterest),totalPayments) - 1)
Though using meaningful variables, the formula is not readable. But if you will look at this formula written in a classical mathematical notation on a page - you will easily know what's going on (really basic math).
How would you even take this formula and write it in a readable way.
Clarification
I'm not talking about any specific language. This should be the same for any high-level language. The example uses Javascript.
You could also add local variables that are abbreviations of the long name. As they are local, their definition will be right above the formula. This could look like
TV = TotalValue;
mi = monthlyInterest;
N = totalPayments;
MR = ( TV*mi*Math.pow( 1+mi, N ) ) / ( Math.pow( 1+mi, N ) - 1)
MonthlyRate = MR;
where you then see that you can simplify the formula to
MR = (TV*mi) / ( 1 - Math.pow( 1+mi , -N) - 1)