Current location - Training Enrollment Network - Mathematics courses - E and r mathematics
E and r mathematics
This question is very creative. . Here are some things I know.

One: (very general) refers to the sum of the numbers listed in a conic curve (such as ellipse, the length of semi-major axis). In the quadratic formula of linear coefficient of general formula x, X 2 is a coefficient and a trigonometric function can be in amplitude.

B is the oblique or vertical intercept representation of the linear correlation coefficient y: (and similar), and the quadratic function is the conic band of the x coefficient (such as ellipse, long semi-short axis).

C: (and similar) Constant term of conic quadratic function expression

D: 2 or the distance between points indicates a straight line, tolerance.

Arithmetic progression in e: natural logarithm, eccentricity of quadratic curve (E = C/A)

F, g, h: generally represents a function.

Me: complicated (fictional) reasons (what I forgot) stipulate that I 2 =- 1.

Reporter: I'm not used to it. .

K is the slope.

L: stands for straight line (such as l 1: y = x+ 1, L2: y =-x+ 1, etc.). ).

M: Unknown constant is set (multiple letters can be used).

N is the number of columns.

Type o: probability

Q: Coordinate system

The common ratio r radius of the origin of p

Area, number of columns and

T: (unclear)

U, v: stands for a function (f, g, h has ..., and u and v are used).

Volume w: use plural numbers to indicate specific complexity.

X, y, z: unknown

In addition, all uppercase letters can represent a base point, lowercase letters plus an arrow vector can represent it, many unknown letters can also represent it, and so on.