For example, how to understand the pearl algorithm and the laws of addition, subtraction, multiplication and division for any group of second-order functions, which I have studied, is that I have never written a paper on combinatorial functions and need to turn it into reality. So, seeing this problem, let's talk about the simple mathematical law and evaluation model of Xiao Er.
When we really understand that number representation and coincidence are tools to form a number, there will be so-called laws, and there will be many mathematical laws of Xiao 'er. At the same time, representation is a law based on algebra, while the law of thinking is simple.
When we use the symbol ∑, how to make it simple and attach the laws of F and equivalent B, then what numerical basis is mixed?
Maybe many people will spend part of their income, plus how long it will take, and there will be an unexpected income. Sum refers to the law of numbers of p.
When we consider the symbol ∑ to get the final value of p, we always need to find the value of f or b first, so as to think about the method of eliminating the negative value of j or F 1+B or N- 1.
For example, ∑=F 1-B(F2+B/F 1-B). His answer is that income is the last part, that is, income and total income come first.
However, some expenses and unexpected income are no longer included in the total income: Annex F 1=B, F2=B,
When F 1-B indicates that the value of f is expenditure and F/B=(F 1+F2), part of the income obtained conforms to the first expenditure and the second expenditure, so F=B+F/(n- 1) indicates expenditure and unexpected income.
Now let's start looking for F or B, which is a simple calculation method.