For example, a math problem, I want to ask what is the difference between sum and sum, thank you.
In other words, these two aspects must meet this condition. For example, if increasing function is in the interval 1 and in the interval 2, then increasing function is in the interval 1 and increasing function is in the interval 2. In addition, in the process from the interval 1 to the interval 2, the function value of increasing function in the interval 2 is greater than the interval 1.
And there is no last condition in the upper section, as long as both intervals meet this condition.