C[a, b] means continuous on the closed interval ab.

Permutation and combination C 1/4=4

The derivative of cosx is -sinx.

Mathematical expressions in C language (first define integer variables and use X)

[0， 10]X & gt； = 0 & amp& ampX & lt= 10

(0， 10)X & gt； 0 & amp& ampX & lt 10

[0， 10)X & gt； = 0 & amp& ampX & lt 10

(0， 10)X & gt； 0 & amp& ampX & lt= 10

Extended data:

In mathematical statistics, the unknown quantity to be estimated is a parameter θ or a function g(θ) of the population distribution. The problem of interval estimation can generally be expressed as follows: it is required to construct an appropriate interval A (x) and B (x) only by relying on the sample X=(x 1, x2, xn), and once the observed value of the sample x is obtained, the intervals A (x) and B (x) are taken as θ or g..

Building it is related to the principles and standards it is based on. These principles, criteria and methods of constructing interval estimation are the research objects of interval estimation theory. As a form of parameter estimation, interval estimation and point estimation are parallel and complementary, and are also closely related to hypothesis testing.

Baidu Encyclopedia-Interval Estimation